Test 7 · ★★ · Myth check: are bats blind?

What would happen if all the insect-eating bats near a farm disappeared?

Mova's choice: option 4 · The right answer: option 3 · wrong ✗ · Who acts: eating bats · What happens: happen, eat, disappear

This is test 7 · ★★ of lesson 153 «Myth check: are bats blind?» 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	if	if	SCONJ	_	14 disappeared	mark
5	all	all	DET	PronType=Tot	10 bats	det:predet
6	the	the	DET	Definite=Def PronType=Art	10 bats	det
7	insect	insect	NOUN	Number=Sing	9 eating	compound
8	-	-	PUNCT	_	7 insect	punct
9	eating	eat	VERB	VerbForm=Ger	10 bats	amod
10	bats	bat	NOUN	Number=Plur	14 disappeared	nsubj
11	near	near	ADP	_	13 farm	case
12	a	a	DET	Definite=Ind PronType=Art	13 farm	det
13	farm	farm	NOUN	Number=Sing	10 bats	nmod
14	disappeared	disappear	VERB	Tense=Past VerbForm=Part	3 happen	advcl
15	?	?	PUNCT	_	3 happen	punct

#	verb	tense, mood	who	roles by
1	happen	would		vn occur-48.3-1 «NP V»: agent=Theme
2	eat	gerund		vn eat-39.1-1 «NP V»: agent=Agent
3	disappear a condition, not said to happen	participle	all eating bats near a farm	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

Crops would grow twice as fast

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Crops	crop	NOUN	Number=Plur	3 grow	nsubj
2	would	would	AUX	VerbForm=Fin	3 grow	aux
3	grow	grow	VERB	VerbForm=Inf	root	root
4	twice	twice	ADV	NumForm=Word NumType=Mult	3 grow	advmod
5	as	as	ADV	_	6 fast	advmod
6	fast	fast	ADV	Degree=Pos	3 grow	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	grow	would	Crops					fast, twice property	vn appear-48.1.1 «NP V»: agent=Theme

Option 2

Nothing would change

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Nothing	nothing	PRON	Number=Sing PronType=Neg	3 change	nsubj
2	would	would	AUX	VerbForm=Fin	3 change	aux
3	change	change	VERB	VerbForm=Inf	root	root

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	change	would	Nothing						vn dress-41.1.1-1-1 «NP V»: agent=Agent

Option 3 · ✓ the right answer

Many more insects would eat the crops and bite people and animals

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Many	many	ADJ	Degree=Pos	3 insects	amod
2	more	more	ADJ	Degree=Cmp	3 insects	amod
3	insects	insect	NOUN	Number=Plur	5 eat	nsubj
4	would	would	AUX	VerbForm=Fin	5 eat	aux
5	eat	eat	VERB	VerbForm=Inf	root	root
6	the	the	DET	Definite=Def PronType=Art	7 crops	det
7	crops	crop	NOUN	Number=Plur	5 eat	obj
8	and	and	CCONJ	_	9 bite	cc
9	bite	bite	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	5 eat	conj
10	people	people	NOUN	Number=Plur	9 bite	obj
11	and	and	CCONJ	_	12 animals	cc
12	animals	animal	NOUN	Number=Plur	10 people	conj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	eat	would	Many more insects	the crops					vn eat-39.1-1 «NP V NP»: agent=Agent crop=Patient
2	bite	present	Many more insects not said here	people and animals					vn swat-18.2 «NP V NP»: agent=Agent people=Patient

Option 4 · ← Mova's choice

The fruit trees would make much more fruit, because no bats would be eating it

The tree, 15 words

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	3 trees	det
2	fruit	fruit	NOUN	Number=Sing	3 trees	compound
3	trees	tree	NOUN	Number=Plur	5 make	nsubj
4	would	would	AUX	VerbForm=Fin	5 make	aux
5	make	make	VERB	VerbForm=Inf	root	root
6	much	much	ADV	_	7 more	advmod
7	more	more	ADJ	Degree=Cmp	8 fruit	amod
8	fruit	fruit	NOUN	Number=Sing	5 make	obj
9	,	,	PUNCT	_	15 eating	punct
10	because	because	SCONJ	_	15 eating	mark
11	no	no	DET	PronType=Neg	12 bats	det
12	bats	bat	NOUN	Number=Plur	15 eating	nsubj
13	would	would	AUX	VerbForm=Fin	15 eating	aux
14	be	be	AUX	VerbForm=Inf	15 eating	aux
15	eating	eat	VERB	Tense=Pres VerbForm=Part	5 make	advcl
16	it	it	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	15 eating	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	make	would	the fruit trees	more fruit					vn build-26.1-1 «NP.asset V NP»: agent=Asset fruit=Product
2	eat	would · progressive	no bats	fruit					vn eat-39.1-1 «NP V NP»: agent=Agent it=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/153-are-bats-blind/t7/