Test 7 · ★★★ · Balance in a food web
A koala eats only eucalyptus leaves; a fox eats mice, berries and insects. Which is in more danger if one of its foods disappears?
Mova's choice: option 1 · The right answer: option 1 · right ✓ · Who acts: koala, fox, one · What happens: eat, be, disappear · To what, where: eucalyptus leaves, mice, more danger
This is test 7 · ★★★ of lesson 30 «Balance in a food web» of the world 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 koala eats only eucalyptus leaves; a fox eats mice, berries and insects.
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | A | a | DET | Definite=Ind PronType=Art | 2 koala | det |
| 2 | koala | koala | NOUN | Number=Sing | 3 eats | nsubj |
| 3 | eats | eat | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | root | root |
| 4 | only | only | ADV | _ | 6 leaves | advmod |
| 5 | eucalyptus | eucalyptus | NOUN | Number=Sing | 6 leaves | compound |
| 6 | leaves | leaf | NOUN | Number=Plur | 3 eats | obj |
| 7 | ; | ; | PUNCT | _ | 10 eats | punct |
| 8 | a | a | DET | Definite=Ind PronType=Art | 9 fox | det |
| 9 | fox | fox | NOUN | Number=Sing | 10 eats | nsubj |
| 10 | eats | eat | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 3 eats | conj |
| 11 | mice | mouse | NOUN | Number=Plur | 10 eats | obj |
| 12 | , | , | PUNCT | _ | 13 berries | punct |
| 13 | berries | berry | NOUN | Number=Plur | 11 mice | conj |
| 14 | and | and | CCONJ | _ | 15 insects | cc |
| 15 | insects | insect | NOUN | Number=Plur | 11 mice | conj |
| 16 | . | . | PUNCT | _ | 3 eats | punct |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | eat | present | a koala | eucalyptus leaves | vn eat-39.1-1 «NP V NP»: agent=Agent leaf=Patient | ||||
| 2 | eat | present | a fox | mice and berries and insects | vn eat-39.1-1 «NP V NP»: agent=Agent mouse=Patient |
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 in more danger if one of its foods disappears?
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | Which | which | PRON | PronType=Rel | 5 danger | nsubj |
| 2 | is | be | AUX | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 5 danger | cop |
| 3 | in | in | ADP | _ | 5 danger | case |
| 4 | more | more | ADJ | Degree=Cmp | 5 danger | amod |
| 5 | danger | danger | NOUN | Number=Sing | root | root |
| 6 | if | if | SCONJ | _ | 11 disappears | mark |
| 7 | one | one | NUM | NumForm=Word NumType=Card | 11 disappears | nsubj |
| 8 | of | of | ADP | _ | 10 foods | case |
| 9 | its | its | PRON | Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs | 10 foods | nmod:poss |
| 10 | foods | food | NOUN | Number=Plur | 7 one | nmod |
| 11 | disappears | disappear | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 5 danger | advcl |
| 12 | ? | ? | PUNCT | _ | 5 danger | punct |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | is | present | more danger | tree rules | |||||
| 2 | disappear a condition, not said to happen | present | one of danger's foods | vn disappearance-48.2-1 «NP V»: agent=Theme |
The options
Option 1 · ← Mova's choice · ✓ the right answer
The koala
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | The | the | DET | Definite=Def PronType=Art | 2 koala | det |
| 2 | koala | koala | NOUN | Number=Sing | root | root |
The frames reader finds no event or fact in this sentence.
Option 2
The fox
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | The | the | DET | Definite=Def PronType=Art | 2 fox | det |
| 2 | fox | fox | NOUN | Number=Sing | root | root |
The frames reader finds no event or fact in this sentence.
Option 3
Both the same
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | Both | both | CCONJ | _ | 3 same | cc:preconj |
| 2 | the | the | DET | Definite=Def PronType=Art | 3 same | det |
| 3 | same | same | ADJ | Degree=Pos | root | root |
The frames reader finds no event or fact in this sentence.
Option 4
Neither of them
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | Neither | neither | DET | PronType=Neg | root | root |
| 2 | of | of | ADP | _ | 3 them | case |
| 3 | them | they | PRON | Case=Acc Number=Plur Person=3 PronType=Prs | 1 Neither | nmod |
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/world/30-balance-in-food-webs/t7/