Test 7 · ★★★ · Snakes and lizards
A lizard dropped its tail to escape a cat. What is different about the tail that grows back?
Mova's choice: option 1 · The right answer: option 1 · right ✓ · Who acts: lizard, tail · What happens: drop, escape, be, grow back · To what, where: tail, cat
This is test 7 · ★★★ of lesson 30 «Snakes and lizards» 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: A lizard dropped its tail to escape a cat.
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | A | a | DET | Definite=Ind PronType=Art | 2 lizard | det |
| 2 | lizard | lizard | NOUN | Number=Sing | 3 dropped | nsubj |
| 3 | dropped | drop | VERB | Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin | root | root |
| 4 | its | its | PRON | Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs | 5 tail | nmod:poss |
| 5 | tail | tail | NOUN | Number=Sing | 3 dropped | obj |
| 6 | to | to | PART | _ | 7 escape | mark |
| 7 | escape | escape | VERB | VerbForm=Inf | 3 dropped | advcl |
| 8 | a | a | DET | Definite=Ind PronType=Art | 9 cat | det |
| 9 | cat | cat | NOUN | Number=Sing | 7 escape | obj |
| 10 | . | . | PUNCT | _ | 3 dropped | punct |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | drop | past | a lizard | lizard's tail | vn put_direction-9.4 «NP V NP»: agent=Agent tail=Theme | ||||
| 2 | escape | to-infinitive | a lizard not said here | a cat | vn escape-51.1-1-1 «NP V NP»: agent=Theme cat=Initial_Location |
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: What is different about the tail that grows back?
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | What | what | PRON | PronType=Int | 3 different | nsubj |
| 2 | is | be | AUX | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 3 different | cop |
| 3 | different | different | ADJ | Degree=Pos | root | root |
| 4 | about | about | ADP | _ | 6 tail | case |
| 5 | the | the | DET | Definite=Def PronType=Art | 6 tail | det |
| 6 | tail | tail | NOUN | Number=Sing | 3 different | obl |
| 7 | that | that | PRON | PronType=Rel | 8 grows | nsubj |
| 8 | grows | grow | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 6 tail | acl:relcl |
| 9 | back | back | ADV | _ | 8 grows | advmod |
| 10 | ? | ? | PUNCT | _ | 3 different | punct |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | is | present | about the tail; different property | tree rules | |||||
| 2 | grow back | present | the tail | vn appear-48.1.1 «NP V»: agent=Theme |
The options
Option 1 · ← Mova's choice · ✓ the right answer
It has cartilage inside instead of bone
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | It | it | PRON | Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs | 2 has | nsubj |
| 2 | has | have | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | root | root |
| 3 | cartilage | cartilage | NOUN | Number=Sing | 2 has | obj |
| 4 | inside | inside | ADV | _ | 2 has | advmod |
| 5 | instead | instead | ADV | ExtPos=ADP | 7 bone | case |
| 6 | of | of | ADP | _ | 5 instead | fixed |
| 7 | bone | bone | NOUN | Number=Sing | 2 has | obl |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | have | present | It | cartilage | instead bone; inside property | vn birth-28.2-1 «NP V NP»: agent=Agent cartilage=Patient |
Option 2
It grows back exactly the same, with bone
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | It | it | PRON | Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs | 2 grows | nsubj |
| 2 | grows | grow | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | root | root |
| 3 | back | back | ADV | _ | 2 grows | advmod |
| 4 | exactly | exactly | ADV | _ | 6 same | advmod |
| 5 | the | the | DET | Definite=Def PronType=Art | 6 same | det |
| 6 | same | same | ADJ | Degree=Pos | 2 grows | xcomp |
| 7 | , | , | PUNCT | _ | 9 bone | punct |
| 8 | with | with | ADP | _ | 9 bone | case |
| 9 | bone | bone | NOUN | Number=Sing | 2 grows | parataxis |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | grow back | present | It | same property | vn appear-48.1.1 «NP V»: agent=Theme |
Option 3
It never grows back, so the lizard has no tail for life
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | It | it | PRON | Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs | 3 grows | nsubj |
| 2 | never | never | ADV | PronType=Neg | 3 grows | advmod |
| 3 | grows | grow | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | root | root |
| 4 | back | back | ADV | _ | 3 grows | advmod |
| 5 | , | , | PUNCT | _ | 9 has | punct |
| 6 | so | so | ADV | _ | 9 has | advmod |
| 7 | the | the | DET | Definite=Def PronType=Art | 8 lizard | det |
| 8 | lizard | lizard | NOUN | Number=Sing | 9 has | nsubj |
| 9 | has | have | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 3 grows | conj |
| 10 | no | no | DET | PronType=Neg | 11 tail | det |
| 11 | tail | tail | NOUN | Number=Sing | 9 has | obj |
| 12 | for | for | ADP | _ | 13 life | case |
| 13 | life | life | NOUN | Number=Sing | 11 tail | nmod |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | not grow back | present | It | vn appear-48.1.1 «NP V»: agent=Theme | |||||
| 2 | have | present | the lizard | no tail | for life | vn birth-28.2-1 «NP V NP»: agent=Agent tail=Patient |
Option 4
It grows back as two tails
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | It | it | PRON | Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs | 2 grows | nsubj |
| 2 | grows | grow | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | root | root |
| 3 | back | back | ADV | _ | 2 grows | advmod |
| 4 | as | as | ADP | _ | 6 tails | case |
| 5 | two | two | NUM | NumForm=Word NumType=Card | 6 tails | nummod |
| 6 | tails | tail | NOUN | Number=Plur | 2 grows | obl |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | grow back | present | It | as two tails | vn appear-48.1.1 «NP V»: agent=Theme |
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/30-snakes-and-lizards/t7/