Test 4 · Crocodiles and alligators
Two tanks: one animal has a broad round snout and no lower teeth showing. Which is it?
Mova's choice: option 1 · The right answer: option 3 · wrong ✗ · Who acts: Two tanks, lower teeth · What happens: have, show, be · To what, where: broad round snout, animal
This is test 4 of lesson 29 «Crocodiles and alligators» 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 tanks: one animal has a broad round snout and no lower teeth showing.
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | Two | two | NUM | NumForm=Word NumType=Card | 2 tanks | nummod |
| 2 | tanks | tank | NOUN | Number=Plur | 6 has | nsubj |
| 3 | : | : | PUNCT | _ | 6 has | punct |
| 4 | one | one | NUM | NumForm=Word NumType=Card | 5 animal | nummod |
| 5 | animal | animal | NOUN | Number=Sing | 6 has | nsubj |
| 6 | has | have | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | root | root |
| 7 | a | a | DET | Definite=Ind PronType=Art | 10 snout | det |
| 8 | broad | broad | ADJ | Degree=Pos | 10 snout | amod |
| 9 | round | round | ADJ | Degree=Pos | 10 snout | amod |
| 10 | snout | snout | NOUN | Number=Sing | 6 has | obj |
| 11 | and | and | CCONJ | _ | 14 teeth | cc |
| 12 | no | no | DET | PronType=Neg | 14 teeth | det |
| 13 | lower | low | ADJ | Degree=Cmp | 14 teeth | amod |
| 14 | teeth | tooth | NOUN | Number=Plur | 10 snout | conj |
| 15 | showing | show | VERB | VerbForm=Ger | 14 teeth | acl |
| 16 | . | . | PUNCT | _ | 6 has | punct |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | have | present | Two tanks | a broad round snout and no lower teeth | vn birth-28.2-1 «NP V NP»: agent=Agent snout=Patient | ||||
| 2 | show | gerund | no lower teeth not said here | vn transfer_mesg-37.1.1-1-1 «NP V»: agent=Agent |
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: Which is it?
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | Which | which | PRON | PronType=Rel | 3 it | nsubj |
| 2 | is | be | AUX | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 3 it | cop |
| 3 | it | it | PRON | Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs | root | root |
| 4 | ? | ? | PUNCT | _ | 3 it | punct |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | is a | present | animal | tree rules |
The options
Option 1 · ← Mova's choice
It could be either
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 be | nsubj |
| 2 | could | could | AUX | VerbForm=Fin | 3 be | aux |
| 3 | be | be | VERB | VerbForm=Inf | root | root |
| 4 | either | either | ADV | PronType=Ind | 3 be | advmod |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | can | could | It | either property | vn exist-47.1 «NP V»: agent=Theme |
Option 2
Neither, it's a lizard
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | Neither | neither | ADV | _ | 6 lizard | advmod |
| 2 | , | , | PUNCT | _ | 1 Neither | punct |
| 3 | it | it | PRON | Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs | 6 lizard | nsubj |
| 4 | 's | be | AUX | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 6 lizard | cop |
| 5 | a | a | DET | Definite=Ind PronType=Art | 6 lizard | det |
| 6 | lizard | lizard | NOUN | Number=Sing | root | root |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | is a | present | it | a lizard | neither property | tree rules |
Option 3 · ✓ the right answer
The alligator
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | The | the | DET | Definite=Def PronType=Art | 2 alligator | det |
| 2 | alligator | alligator | NOUN | Number=Sing | root | root |
The frames reader finds no event or fact in this sentence.
Option 4
The crocodile
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | The | the | DET | Definite=Def PronType=Art | 2 crocodile | det |
| 2 | crocodile | crocodile | NOUN | Number=Sing | root | root |
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/29-crocodiles-and-alligators/t4/