Test 5 · ★★ · Who eats whom: predators, prey, scavengers and decomposers
What would happen to a field full of cow pats if there were no dung beetles or other decomposers?
Mova's choice: option 3 · The right answer: option 3 · right ✓ · Who acts: dung beetles · What happens: happen, be
This is test 5 · ★★ of lesson 47 «Who eats whom: predators, prey, scavengers and decomposers» 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
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | What | what | PRON | PronType=Int | 3 happen | nsubj |
| 2 | would | would | AUX | VerbForm=Fin | 3 happen | aux |
| 3 | happen | happen | VERB | VerbForm=Inf | root | root |
| 4 | to | to | ADP | _ | 6 field | case |
| 5 | a | a | DET | Definite=Ind PronType=Art | 6 field | det |
| 6 | field | field | NOUN | Number=Sing | 3 happen | obl |
| 7 | full | full | ADJ | Degree=Pos | 6 field | amod |
| 8 | of | of | ADP | _ | 10 pats | case |
| 9 | cow | cow | NOUN | Number=Sing | 10 pats | compound |
| 10 | pats | pat | NOUN | Number=Plur | 7 full | obl |
| 11 | if | if | SCONJ | _ | 13 were | mark |
| 12 | there | there | PRON | PronType=Dem | 13 were | expl |
| 13 | were | be | VERB | Mood=Ind Number=Plur Person=3 Tense=Past VerbForm=Fin | 3 happen | advcl |
| 14 | no | no | DET | PronType=Neg | 16 beetles | det |
| 15 | dung | dung | NOUN | Number=Sing | 16 beetles | compound |
| 16 | beetles | beetle | NOUN | Number=Plur | 13 were | nsubj |
| 17 | or | or | CCONJ | _ | 19 decomposers | cc |
| 18 | other | other | ADJ | Degree=Pos | 19 decomposers | amod |
| 19 | decomposers | decomposer | NOUN | Number=Plur | 16 beetles | conj |
| 20 | ? | ? | PUNCT | _ | 3 happen | punct |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | happen | would | to a field | vn occur-48.3-1 «NP V»: agent=Theme | |||||
| 2 | be a condition, not said to happen | past | no dung beetles or other decomposers | there | vn exist-47.1 «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.
The options
Option 1
The cows would stop making dung
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | The | the | DET | Definite=Def PronType=Art | 2 cows | det |
| 2 | cows | cow | NOUN | Number=Plur | 4 stop | nsubj |
| 3 | would | would | AUX | VerbForm=Fin | 4 stop | aux |
| 4 | stop | stop | VERB | VerbForm=Inf | root | root |
| 5 | making | make | VERB | VerbForm=Ger | 4 stop | xcomp |
| 6 | dung | dung | NOUN | Number=Sing | 5 making | obj |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | stop | would | the cows | vn stop-55.4-1-1 «NP V S_ING»: agent=Affector clause=Eventuality | |||||
| 2 | make | gerund | the cows not said here | dung | vn build-26.1-1 «NP.asset V NP»: agent=Asset dung=Product |
Option 2
The dung would turn into fresh green grass by itself
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | The | the | DET | Definite=Def PronType=Art | 2 dung | det |
| 2 | dung | dung | NOUN | Number=Sing | 4 turn | nsubj |
| 3 | would | would | AUX | VerbForm=Fin | 4 turn | aux |
| 4 | turn | turn | VERB | VerbForm=Inf | root | root |
| 5 | into | into | ADP | _ | 8 grass | case |
| 6 | fresh | fresh | ADJ | Degree=Pos | 8 grass | amod |
| 7 | green | green | ADJ | Degree=Pos | 8 grass | amod |
| 8 | grass | grass | NOUN | Number=Sing | 4 turn | obl |
| 9 | by | by | ADP | _ | 10 itself | case |
| 10 | itself | itself | PRON | Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs Reflex=Yes | 4 turn | obl |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | turn | would | the dung | fresh green grass | by dung | vn roll-51.3.1 «NP.theme V PP.source PP.trajectory PP.destination»: agent=Theme into grass=Source by itself=Trajectory |
Option 3 · ← Mova's choice · ✓ the right answer
The dung would pile up and flies would breed in it
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | The | the | DET | Definite=Def PronType=Art | 2 dung | det |
| 2 | dung | dung | NOUN | Number=Sing | 4 pile | nsubj |
| 3 | would | would | AUX | VerbForm=Fin | 4 pile | aux |
| 4 | pile | pile | VERB | VerbForm=Inf | root | root |
| 5 | up | up | ADP | _ | 4 pile | compound:prt |
| 6 | and | and | CCONJ | _ | 9 breed | cc |
| 7 | flies | fly | NOUN | Number=Plur | 9 breed | nsubj |
| 8 | would | would | AUX | VerbForm=Fin | 9 breed | aux |
| 9 | breed | breed | VERB | VerbForm=Inf | 4 pile | conj |
| 10 | in | in | ADP | _ | 11 it | case |
| 11 | it | it | PRON | Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs | 9 breed | obl |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | pile up | would | the dung | vn spray-9.7-1-1 «NP V PP.destination»: agent=Theme | |||||
| 2 | breed | would | flies | dung | tree rules |
Option 4
Nothing, dung just vanishes
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | Nothing | nothing | PRON | Number=Sing PronType=Neg | 5 vanishes | nsubj |
| 2 | , | , | PUNCT | _ | 3 dung | punct |
| 3 | dung | dung | NOUN | Number=Sing | 1 Nothing | conj |
| 4 | just | just | ADV | _ | 5 vanishes | advmod |
| 5 | vanishes | vanish | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | root | root |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | vanish | present | Nothing | vn disappearance-48.2-1 «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/47-predators-prey-scavengers-decomposers/t5/