Classifying unusual animals

Tests: 8 of 14 right · Exam: 3 of 4 right · Kind: ★★ · Understood: 15 of 18 · Run: 2026-10-18, commit f3c23ea72

Lesson 29 of the world course of Mova's primary school, as Mova's small model took its tests: it had read this lesson and the ones before it and learned from their exercises. Each test shows the options in the order the student saw them, its choice, the right answer, the score of every option and why it chose. The lesson itself, sentence by sentence with trees and pragmatics: the lesson in the corpora.

Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: the lesson's questions in the corpora.

Test 1 · ★★ · right ✓

A new animal is found in a cave: it flies, has fur and feeds its young milk. What is it?

1. A mammal — ← Mova's choice · ✓ the right answer · score 7
2. A bird — no support
3. An insect — no support
4. A reptile — no support

Why: It took the question to ask what it is done to. It chose option 1 with score 7, the only option with support. Its support: lesson 29, line 5: «The platypus is a mammal with fur that feeds its young milk, yet it lays eggs, and a starfish and a jellyfish are not fish at all, because they have no backbon…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+4); the same thing acted on «mammal» (+3); the same light verb (be, have, do, get, go) (+1). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 2 · ★★ · right ✓

A sailor says dolphins are big fish. What is the best answer?

1. No, they breathe air and feed young milk, so they are mammals — ← Mova's choice · ✓ the right answer · score 17
2. Yes, they live in the sea and have fins — score 7
3. No, they are amphibians living in water — score 3
4. Yes, they swim and catch fish to eat — score 8

Why: It took the question to ask what it is done to. It chose option 1 with score 17, against 8 for the next best. Its support: lesson 29, line 7: «Whales and dolphins are mammals: they breathe air with lungs and feed their young milk.», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+6); the same doer «dolphins» (+4); the same thing acted on «air» (+4); the same action «breathe» (+3). · the question and its options parsed, with trees and pragmatics

Test 3 · ★★ · right ✓

A small animal has six legs, wings and three body parts, but it lives in a pond. What is it?

1. An insect — ← Mova's choice · ✓ the right answer · no support
2. A fish — no support
3. An amphibian — no support
4. A spider — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Test 4 · ★★ · right ✓

A sea turtle comes onto the beach at night. What is it most likely doing?

1. Feeding its young with milk — no support
2. Looking for leaves to eat — score 4
3. Laying its eggs in the sand — ← Mova's choice · ✓ the right answer · score 6
4. Breathing with its lungs at last — score 4

Why: It took the question to ask what is done. It chose option 3 with score 6, against 4 for the next best. Its support: lesson 29, line 17: «Turtles are reptiles that lay their eggs on land, even if they live in the sea.», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+3); the same action «lay» (+2); the same thing acted on «eggs» (+2). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 5 · ★★ · wrong ✗

Which group includes both the penguin and the eagle?

1. Mammals — ← Mova's choice · score 9
2. Fish — no support
3. Reptiles — no support
4. Birds — ✓ the right answer · score 9

Why: It took the question to ask who or what does it. It chose option 1 with score 9, tied with another option at 9 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 29, line 9: «Penguins are birds: they have feathers and lay hard-shelled eggs, but use their wings as flippers.», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+5); the same doer «dolphins» (+4). The right option, 4, scored 9. · the question and its options parsed, with trees and pragmatics

Test 6 · ★★ · wrong ✗

An animal lays eggs, has fur and a beak like a duck. Which group is it in?

1. Mammals — ✓ the right answer · score 9
2. Birds — ← Mova's choice · score 11
3. Reptiles — score 9
4. Amphibians — score 9

Why: It took the question to ask who or what does it. It chose option 2 with score 11, against 9 for the next best. Its support: lesson 24, line 9: «Birds have feathers, a beak and lay eggs with hard shells.», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+5); the same doer «birds» (+4); the same thing acted on «feathers» (+2). The right option, 1, scored 9. · the question and its options parsed, with trees and pragmatics

Test 7 · ★★ · wrong ✗

Which pair are both NOT insects?

1. A fly and a grey woodlouse — ← Mova's choice · score 11
2. A beetle and a red wood ant — score 8
3. A bee and a garden spider — score 11
4. A spider and a woodlouse — ✓ the right answer · score 11

Why: It took the question to ask who or what does it. It chose option 1 with score 11, tied with another option at 11 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 29, line 4: «A spider is not an insect: it has eight legs, two body parts and no antennae or wings; a woodlouse with fourteen legs is not an insect either, it is a relative…», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «insect» (+3); the same light verb (be, have, do, get, go) (+3); it fills the role the question asks for (+3); the same doer «woodlouse» (+2). The right option, 4, scored 11. · the question and its options parsed, with trees and pragmatics

Test 8 · ★★ · right ✓

Why must a whale come up to the surface again and again?

1. To breathe air with its lungs — ← Mova's choice · ✓ the right answer · score 7
2. To catch the birds flying above the sea — score 3
3. To clean the sand out of its gills — score 3
4. To warm up in the bright sunshine — score 3

Why: It took the question to ask why something happens (its cause). It chose option 1 with score 7, against 3 for the next best. Its support: lesson 29, line 8: «A whale must come to the surface to breathe through its blowhole.», reached through the cause of the sentence the question matched. What matched: the same doer «whale» (+4); the same action «breathe» (+3). · the question and its options parsed, with trees and pragmatics

Test 9 · ★★ · wrong ✗

A jellyfish lives in the sea, has no bones and no gills. Is it a fish?

1. No, fish cannot sting — no support
2. No, fish have a backbone — ✓ the right answer · no support
3. Yes, it lives in the sea — ← Mova's choice · score 6
4. Yes, it can swim — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 6, the only option with support. Its support: lesson 24, line 5: «A dolphin lives in the sea and has fins, but it breathes air and feeds its baby milk, so it is a mammal, not a fish.», reached through the remembered sentence the question matched. What matched: the same action «live» (+4); the same place «sea» (+4). Against it: a different doer (counts against) (-2). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 10 · ★★ · right ✓

Which statement is true?

1. Some mammals can fly — ← Mova's choice · ✓ the right answer · no support
2. All animals with eight legs are insects — no support
3. All birds can fly — no support
4. All sea animals are fish — no support

Why: Nothing it remembers matched the question, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Test 11 · ★★ · right ✓

is a whale a fish

1. Yes, it lives in water so it's a fish — no support
2. Yes, it has gills like a fish — no support
3. No, it's a reptile of the sea — no support
4. No, it's a mammal that breathes air — ← Mova's choice · ✓ the right answer · score 1

Why: It took the question to ask which statement is true. It chose option 4 with score 1, the only option with support. Its support: lesson 29, line 2: «A bat flies, but it has fur and feeds its babies milk, so it is a mammal; a whale lives in the sea, but it breathes air with lungs and feeds its calf milk, so…», reached through the option's own match among the sentences about the question's things. What matched: the same action «breathe» (+1); the same thing acted on «air» (+1). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 12 · ★★ · wrong ✗

can penguins fly

1. No, they have no wings at all — no support
2. Yes, but only over the sea — no support
3. Yes, they fly south for winter — ← Mova's choice · score 0
4. No, they use their wings as flippers — ✓ the right answer · no support

Why: It took the question to ask which statement is true. It chose option 3 with score 0, the only option with support. Its support: lesson 29, line 3: «A penguin cannot fly and swims like a fish, but it has feathers and lays eggs with hard shells, so it is a bird.», reached through the remembered sentence the question matched. What matched: the same action «fly» (+4); the same doer «penguin» (+2). Against it: one says «not», the other does not (counts against) (-6). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 13 · ★★ · right ✓

my brother says a starfish is a fish cos it lives in the sea. true?

1. No, it has no backbone, so it's not a fish — ← Mova's choice · ✓ the right answer · score 8
2. Yes, all sea animals are fish — no support
3. Yes, it has fins on its arms — no support
4. No, it's a plant that lives in the sea — score 6

Why: It took the question to ask which statement is true. It chose option 1 with score 8, against 6 for the next best. Its support: lesson 29, line 14: «Starfish and jellyfish are not fish, because they have no backbone.», reached through the remembered sentence the question matched. What matched: its «because» matches the remembered cause (+4); the same doer «starfish» (+2); the same thing acted on «fish» (+2). · the question and its options parsed, with trees and pragmatics

Test 14 · ★★ · wrong ✗

Leo says no mammal lays eggs. right?

1. No, the platypus and the echidna do — ✓ the right answer · no support
2. Yes, all mammals give birth to live young — score 5
3. Yes, only birds and reptiles lay eggs — ← Mova's choice · score 8
4. No, bats lay eggs too — score 8

Why: It took the question to ask which statement is true. It chose option 3 with score 8, tied with another option at 8 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 24, line 9: «Birds have feathers, a beak and lay eggs with hard shells.», reached through the remembered sentence the question matched. What matched: the same action «lay» (+4); the same doer «birds» (+2); the same thing acted on «eggs» (+2). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · wrong ✗

Identify, from among the following, the only mammals capable of true flight.

1. Ostriches — ← Mova's choice · no support
2. Bats — ✓ the right answer · no support
3. Flying squirrels — no support
4. Penguins — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · right ✓

Which of the following statements most accurately characterises whales?

1. They are mammals that breathe air by means of lungs — ← Mova's choice · ✓ the right answer · score 11
2. They are reptiles that lay eggs at sea — no support
3. They are fish that breathe by means of gills — no support
4. They are amphibians that breathe through their skin — no support

Why: It took the question to ask who or what does it. It chose option 1 with score 11, the only option with support. Its support: lesson 29, line 7: «Whales and dolphins are mammals: they breathe air with lungs and feed their young milk.», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «mammals» (+3); the same light verb (be, have, do, get, go) (+3); it fills the role the question asks for (+3); the same doer «whales» (+2). · the question and its options parsed, with trees and pragmatics

Exam question 3 · formal language · right ✓

Select the response that is consistent with the established facts concerning the platypus.

1. It is a mammal that lays eggs — ← Mova's choice · ✓ the right answer · score 1
2. It is a fish that breathes air — no support
3. It is a bird that cannot fly — no support
4. It is a reptile with fur — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 1, the only option with support. Its support: lesson 29, line 5: «The platypus is a mammal with fur that feeds its young milk, yet it lays eggs, and a starfish and a jellyfish are not fish at all, because they have no backbon…», reached through the option's own match among the sentences about the question's things. What matched: the same action «lay» (+1); the same thing acted on «eggs» (+1). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Exam question 4 · formal language · right ✓

Identify the principal reason for which a starfish is not classified as a fish.

1. It is unable to swim — no support
2. It dwells upon the seabed — no support
3. It possesses no colour — no support
4. It possesses no backbone — ← Mova's choice · ✓ the right answer · score 6

Why: It took the question to ask which statement is true. It chose option 4 with score 6, the only option with support. Its support: lesson 29, line 5: «The platypus is a mammal with fur that feeds its young milk, yet it lays eggs, and a starfish and a jellyfish are not fish at all, because they have no backbon…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «starfish» (+4); the same thing acted on «backbone» (+2). · the question and its options parsed, with trees and pragmatics

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/world/29-classifying-unusual-animals/