Test 4 · The city as a habitat

What would happen to peregrines in a city if all the pigeons disappeared?

Mova's choice: option 3 · The right answer: option 2 · wrong ✗ · Who acts: pigeons · What happens: happen, disappear · To what, where: city

This is test 4 of lesson 14 «The city as a habitat» 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	_	5 peregrines	case
5	peregrines	peregrine	NOUN	Number=Plur	3 happen	obl
6	in	in	ADP	_	8 city	case
7	a	a	DET	Definite=Ind PronType=Art	8 city	det
8	city	city	NOUN	Number=Sing	3 happen	obl
9	if	if	SCONJ	_	13 disappeared	mark
10	all	all	DET	PronType=Tot	12 pigeons	det:predet
11	the	the	DET	Definite=Def PronType=Art	12 pigeons	det
12	pigeons	pigeon	NOUN	Number=Plur	13 disappeared	nsubj
13	disappeared	disappear	VERB	Tense=Past VerbForm=Part	3 happen	advcl
14	?	?	PUNCT	_	3 happen	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	happen	would				a city		to peregrines	vn occur-48.3-1 «NP V PP»: agent=Theme in city=Location
2	disappear a condition, not said to happen	participle	all pigeons						vn disappearance-48.2-1 «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.

The options

Option 1

They would stay and catch fish from the river instead

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	3 stay	nsubj
2	would	would	AUX	VerbForm=Fin	3 stay	aux
3	stay	stay	VERB	VerbForm=Inf	root	root
4	and	and	CCONJ	_	5 catch	cc
5	catch	catch	VERB	VerbForm=Inf	3 stay	conj
6	fish	fish	NOUN	Number=Sing	5 catch	obj
7	from	from	ADP	_	9 river	case
8	the	the	DET	Definite=Def PronType=Art	9 river	det
9	river	river	NOUN	Number=Sing	5 catch	obl
10	instead	instead	ADV	_	3 stay	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	stay	would	They					instead property	vn exist-47.1 «NP V»: agent=Theme
2	catch	infinitive	They not said here	fish		the river			vn get-13.5.1 «NP V NP PP.source»: agent=Agent fish=Theme from river=Source

Option 2 · ✓ the right answer

They would lose a main food and might leave

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	3 lose	nsubj
2	would	would	AUX	VerbForm=Fin	3 lose	aux
3	lose	lose	VERB	VerbForm=Inf	root	root
4	a	a	DET	Definite=Ind PronType=Art	6 food	det
5	main	main	ADJ	Degree=Pos	6 food	amod
6	food	food	NOUN	Number=Sing	3 lose	obj
7	and	and	CCONJ	_	9 leave	cc
8	might	might	AUX	VerbForm=Fin	9 leave	aux
9	leave	leave	VERB	VerbForm=Inf	3 lose	conj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	lose	would	They	a main food					vn succeed-74-3-1 «NP V NP»: agent=Agent food=Eventuality
2	leave	might	They not said here						vn escape-51.1-1-1 «NP V»: agent=Theme

Option 3 · ← Mova's choice

Nothing, they eat only fish

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Nothing	nothing	PRON	Number=Sing PronType=Neg	4 eat	vocative
2	,	,	PUNCT	_	1 Nothing	punct
3	they	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	4 eat	nsubj
4	eat	eat	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
5	only	only	ADV	_	6 fish	advmod
6	fish	fish	NOUN	Number=Plur	4 eat	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	eat	present	they	fish				Nothing vocative	vn eat-39.1-1 «NP V NP»: agent=Agent fish=Patient

Option 4

They would start eating bins

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	3 start	nsubj
2	would	would	AUX	VerbForm=Fin	3 start	aux
3	start	start	VERB	VerbForm=Inf	root	root
4	eating	eat	VERB	VerbForm=Ger	3 start	xcomp
5	bins	bin	NOUN	Number=Plur	4 eating	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	start	would	They						vn begin-55.1-1-1 «NP V S_ING»: agent=Agent clause=Eventuality
2	eat	gerund	They not said here	bins					vn eat-39.1-1 «NP V NP»: agent=Agent bin=Patient

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/14-the-city-as-a-habitat/t4/