Test 4 · Myth check: do ostriches bury their heads in the sand?
Two ostriches walk past. How many legs and wings do they have altogether?
Mova's choice: option 1 · The right answer: option 1 · right ✓ · Who acts: Two ostriches, many legs · What happens: walk, have
This is test 4 of lesson 151 «Myth check: do ostriches bury their heads in the sand?» of the biology course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: the test at school.
The question
Sentence 1: Two ostriches walk past.
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | Two | two | NUM | NumForm=Word NumType=Card | 2 ostriches | nummod |
| 2 | ostriches | ostrich | NOUN | Number=Plur | 3 walk | nsubj |
| 3 | walk | walk | VERB | Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin | root | root |
| 4 | past | past | ADV | _ | 3 walk | advmod |
| 5 | . | . | PUNCT | _ | 3 walk | punct |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | walk | present | Two ostriches | past property | vn run-51.3.2-2-1 «NP V»: agent=Theme |
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.
Sentence 2: How many legs and wings do they have altogether?
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | How | how | ADV | PronType=Int | 2 many | advmod |
| 2 | many | many | ADJ | Degree=Pos | 3 legs | amod |
| 3 | legs | leg | NOUN | Number=Plur | 8 have | nsubj |
| 4 | and | and | CCONJ | _ | 5 wings | cc |
| 5 | wings | wing | NOUN | Number=Plur | 3 legs | conj |
| 6 | do | do | AUX | Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin | 8 have | aux |
| 7 | they | they | PRON | Case=Nom Number=Plur Person=3 PronType=Prs | 8 have | nsubj |
| 8 | have | have | VERB | VerbForm=Inf | root | root |
| 9 | altogether | altogether | ADV | _ | 8 have | advmod |
| 10 | ? | ? | PUNCT | _ | 8 have | punct |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | have | present · do-support | many legs and wings | altogether property | vn birth-28.2-1 «NP V NP»: agent=Agent |
The options
Option 1 · ← Mova's choice · ✓ the right answer
4 legs and 4 wings
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | 4 | 4 | NUM | NumForm=Digit NumType=Card | 2 legs | nummod |
| 2 | legs | leg | NOUN | Number=Plur | root | root |
| 3 | and | and | CCONJ | _ | 5 wings | cc |
| 4 | 4 | 4 | NUM | NumForm=Digit NumType=Card | 5 wings | nummod |
| 5 | wings | wing | NOUN | Number=Plur | 2 legs | conj |
The frames reader finds no event or fact in this sentence.
Option 2
2 legs and 2 wings
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | 2 | 2 | NUM | NumForm=Digit NumType=Card | 2 legs | nummod |
| 2 | legs | leg | NOUN | Number=Plur | root | root |
| 3 | and | and | CCONJ | _ | 5 wings | cc |
| 4 | 2 | 2 | NUM | NumForm=Digit NumType=Card | 5 wings | nummod |
| 5 | wings | wing | NOUN | Number=Plur | 2 legs | conj |
The frames reader finds no event or fact in this sentence.
Option 3
8 legs and 4 wings
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | 8 | 8 | NUM | NumForm=Digit NumType=Card | 2 legs | nummod |
| 2 | legs | leg | NOUN | Number=Plur | root | root |
| 3 | and | and | CCONJ | _ | 5 wings | cc |
| 4 | 4 | 4 | NUM | NumForm=Digit NumType=Card | 5 wings | nummod |
| 5 | wings | wing | NOUN | Number=Plur | 2 legs | conj |
The frames reader finds no event or fact in this sentence.
Option 4
4 legs and no wings
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | 4 | 4 | NUM | NumForm=Digit NumType=Card | 2 legs | nummod |
| 2 | legs | leg | NOUN | Number=Plur | root | root |
| 3 | and | and | CCONJ | _ | 5 wings | cc |
| 4 | no | no | DET | PronType=Neg | 5 wings | det |
| 5 | wings | wing | NOUN | Number=Plur | 2 legs | conj |
The frames reader finds no event or fact in this sentence.
Text: the tests of Mova's primary school, written for Mova (world/data/school/), as the course runner gave them to the student. Trees: Mova's own parse — the en model on the CPU, when the site is built — not checked by a teacher; they may be wrong. Frames: Mova's frames reader (prag), each text read on its own. Elamur Cosmic License.
This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/questions/biology/151-ostriches-and-heads-in-the-sand/t4/