Sumatra: the smallest tiger, the hairy rhino, the stinking giant flower and the venomous loris
Tests: 5 of 11 right · Exam: 0 of 4 right · Kind: plain · Understood: 9 of 15 · Run: 2026-10-18, commit f3c23ea72
Lesson 162 of the biology 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 · wrong ✗
«saw a video of a loris getting tickled sooo cute, can i get one» What is right?
- 1. Yes, lorises love being tickled, which is why they lift their arms up like that — ← Mova's choice · score 0
- 2. Yes, they make easy pets — no support
- 3. No, it was scared, and lorises are wild animals with a venomous bite — ✓ the right answer · no support
- 4. No, they only bite on Tuesdays — no support
Why: It took the question to ask which statement is true. It chose option 1 with score 0, the only option with support. Its support: lesson 95, line 8: «The slow loris is one of very few venomous mammals; when a loris raises its arms while being tickled, it is frightened and getting ready to bite.», reached through the option's own match among the sentences about the question's things. What matched: the same action «tickle» (+2). Against it: one says «not», the other does not (counts against) (-2). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Test 2 · right ✓
«2 Sumatran rhinos at a mud hole, how many horns»
- 1. 4 — ← Mova's choice · ✓ the right answer · no support
- 2. 8 — no support
- 3. 2 — no support
- 4. 6 — 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 3 · right ✓
«bet the Sumatran tiger's the biggest tiger, it's in the jungle» What is right?
- 1. No, it is the smallest living tiger — ← Mova's choice · ✓ the right answer · score 5
- 2. Yes, jungle tigers are always biggest — score 5
- 3. No, it is not a real tiger — score 3
- 4. Yes, it is the biggest — score 5
Why: It took the question to ask which statement is true. It chose option 1 with score 5, tied with another option at 5 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 162, line 5: «The Sumatran tiger is the smallest living tiger and lives only on Sumatra; fewer than about six hundred are thought to be left in the wild.», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «smallest living tiger» (+3); the same light verb (be, have, do, get, go) (+2). · the question and its options parsed, with trees and pragmatics
Test 4 · right ✓
In a cartoon a bear lives on honey, wears a red top and talks to a piglet. What is true of the real honey-loving sun bear?
- 1. It lives in a cosy house in a wood in England and eats marmalade sandwiches — score 2
- 2. It is the biggest bear in the world — score 5
- 3. It eats only honey and nothing else — score 2
- 4. It is the smallest bear and licks honey and insects with a very long tongue — ← Mova's choice · ✓ the right answer · score 7
Why: It took the question to ask which statement is true. It chose option 4 with score 7, against 5 for the next best. Its support: lesson 162, line 9: «The sun bear is the smallest bear and has a very long tongue for licking honey and insects; its loose skin lets it twist round and bite a predator that grabs i…», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «honey» (+3); the same action «lick» (+2); the same circumstance (+2). · the question and its options parsed, with trees and pragmatics
Test 5 · wrong ✗
What would happen to a tarsier if its head could not turn?
- 1. It could see behind itself anyway — ← Mova's choice · score 4
- 2. Nothing at all, because tarsiers never need to look around them at all — no support
- 3. It could not look around, because its huge eyes cannot move — ✓ the right answer · score 4
- 4. It would see better — score 4
Why: It took the question to ask what happens next. It chose option 1 with score 4, tied with another option at 4 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 36, line 7: «Insects have a hard outside skeleton called an exoskeleton, and to grow they moult, splitting it and climbing out in a new soft one.», reached through what followed the sentence the question matched. What matched: the same doer «legs» (+4). The right option, 3, scored 4. · the question and its options parsed, with trees and pragmatics
Test 6 · wrong ✗
«it stinks like dead fish in here, what is it» at a botanic garden. What is most likely?
- 1. Someone dropped their lunch — ← Mova's choice · no support
- 2. A titan arum is blooming — ✓ the right answer · no support
- 3. A rhino is in the greenhouse — no support
- 4. The garden pond has frozen over — 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 7 · right ✓
Why might a tiger, rhino and elephant on an island be smaller than their cousins on big lands?
- 1. Islands are full of giants that hunt and eat all the big animals first — no support
- 2. They drink salt water — no support
- 3. The island is colder — no support
- 4. On islands with less room and food, smaller animals do better over many generations — ← Mova's choice · ✓ the right answer · score 6
Why: It took the question to ask why something happens (its cause). It chose option 4 with score 6, the only option with support. Its support: lesson 107, line 13: «Sumatran tigers are the smallest tigers, live only on the island of Sumatra and number fewer than about 600, because forests are cut for farms and tigers are h…», reached through the same lesson line as the sentence the question matched. What matched: the same place «island» (+4); the same doer «smallest tigers» (+2). · the question and its options parsed, with trees and pragmatics
Test 8 · wrong ✗
«3 siamangs singing, wait no 4, how many throat sacs puffing»
- 1. 3 — ← Mova's choice · no support
- 2. 4 — ✓ the right answer · no support
- 3. 1 — no support
- 4. 8 — 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 9 · right ✓
A lizard opens yellow flaps and sails from one tree to the next. What is it?
- 1. A baby bird learning to fly — no support
- 2. A bat with yellow wings — no support
- 3. A flying snake — no support
- 4. A Draco lizard gliding on skin held by ribs — ← Mova's choice · ✓ the right answer · score 5
Why: It took the question to ask what it is done to. It chose option 4 with score 5, the only option with support. Its support: lesson 146, line 4: «Yet real «dragons» exist: the Komodo dragon flicking its forked yellow tongue on an Indonesian beach, the tiny flying dragon gliding between trees, and the bea…», reached through the remembered sentence the question matched. What matched: the same action «glide» (+5). · the question and its options parsed, with trees and pragmatics
Test 10 · wrong ✗
«why should i care what's in my soap, it's just soap» What links soap to Sumatra?
- 1. Soap is made from tiger fat, so buying it hurts the last wild tigers — ← Mova's choice · no support
- 2. Nothing, soap has no plant oils — no support
- 3. Palm oil in soap may come from plantations that replaced forest — ✓ the right answer · no support
- 4. Soap is made of rhino horn — 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 11 · wrong ✗
If all the Sumatran rhinos alive met in one place, about how many would there be?
- 1. About ten thousand — no support
- 2. About a million or more — no support
- 3. Exactly one, kept in a zoo — ← Mova's choice · score 3
- 4. Fewer than fifty — ✓ the right answer · score 3
Why: It took the question to ask what it is done to. It chose option 3 with score 3, tied with another option at 3 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 138, line 10: «With space, pigs keep their sleeping place clean and choose a toilet spot far from it, so a dirty crowded pen shows a problem with the farm, not with the pig.», reached through the option's own match among the sentences about the question's things. What matched: the same action «keep» (+3); a different doer (counts against) (+1). Against it: the same thing acted on «sleeping place» (-1). The right option, 4, scored 3. · the question and its options parsed, with trees and pragmatics
Exam question 1 · formal language · wrong ✗
Identify the principal characteristic distinguishing the Sumatran rhinoceros from the other rhinoceroses of Asia.
- 1. It is entirely without hair — ← Mova's choice · no support
- 2. It alone possesses no horn whatsoever — no support
- 3. It is the largest of all living rhinoceroses, being taller than an elephant — no support
- 4. It alone among the Asian rhinoceroses possesses two horns — ✓ the right answer · 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
Exam question 2 · formal language · wrong ✗
Select the response consistent with the established facts concerning the slow loris.
- 1. It derives pleasure from being tickled — ← Mova's choice · score 8
- 2. It subsists entirely upon bamboo — no support
- 3. It is among the very few primates in possession of venom — ✓ the right answer · score 4
- 4. It is the largest primate of Sumatra — score 5
Why: It took the question to ask which statement is true. It chose option 1 with score 8, against 5 for the next best. Its support: lesson 95, line 8: «The slow loris is one of very few venomous mammals; when a loris raises its arms while being tickled, it is frightened and getting ready to bite.», reached through the same lesson line as the sentence the question matched. What matched: the same action «tickle» (+5); the same doer «loris» (+3). The right option, 3, scored 4. · the question and its options parsed, with trees and pragmatics
Exam question 3 · formal language · wrong ✗
Which of the following statements most accurately characterises the diet of the tarsier?
- 1. It consumes the nectar of flowers exclusively — ← Mova's choice · no support
- 2. It consumes grasses exclusively — no support
- 3. It consumes animal prey exclusively, such as insects and small lizards — ✓ the right answer · no support
- 4. It consumes fruit and the young leaves of trees exclusively, and never any animal — 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 4 · formal language · wrong ✗
Ascertain the significance attributed to the naming of the Tapanuli orangutan in the year two thousand and seventeen.
- 1. It was identified as a species of gorilla — ← Mova's choice · score 3
- 2. It was the first orangutan ever to be observed by scientists in the forests of Sumatra — no support
- 3. It was the first great ape to be described as a new species in nearly a century — ✓ the right answer · no support
- 4. It was the last orangutan surviving in the wild — score 2
Why: It took the question to ask which statement is true. It chose option 1 with score 3, against 2 for the next best. Its support: lesson 162, line 16: «In 2017 scientists named the Tapanuli orangutan as a new species, the first new great ape named in nearly a hundred years, and fewer than eight hundred are tho…», reached through the option's own match among the sentences about the question's things. What matched: the same action «name» (+2); the same circumstance (+2). Against it: a different thing acted on (counts against) (-1). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/biology/162-sumatra-tigers-hairy-rhinos-and-the-venomous-loris/