Test 4 · Strange islands: Komodo dragons, the dodo, red crabs, kaka…

What would happen if rats reached an island where a bird nests on the ground and cannot fly?

Mova's choice: option 4 · The right answer: option 4 · right ✓ · Who acts: rats, bird · What happens: happen, reach, nest, not fly · To what, where: island, ground

This is test 4 of lesson 181 «Strange islands: Komodo dragons, the dodo, red crabs, kakapos, giants and dwarfs» 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	_	6 reached	mark
5	rats	rat	NOUN	Number=Plur	6 reached	nsubj
6	reached	reach	VERB	Mood=Ind Number=Plur Person=3 Tense=Past VerbForm=Fin	3 happen	advcl
7	an	a	DET	Definite=Ind PronType=Art	8 island	det
8	island	island	NOUN	Number=Sing	6 reached	obj
9	where	where	ADV	PronType=Rel	12 nests	advmod
10	a	a	DET	Definite=Ind PronType=Art	11 bird	det
11	bird	bird	NOUN	Number=Sing	12 nests	nsubj
12	nests	nest	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	8 island	acl:relcl
13	on	on	ADP	_	15 ground	case
14	the	the	DET	Definite=Def PronType=Art	15 ground	det
15	ground	ground	NOUN	Number=Sing	12 nests	obl
16	and	and	CCONJ	_	19 fly	cc
17	can	can	AUX	VerbForm=Fin	19 fly	aux
18	not	not	PART	Polarity=Neg	19 fly	advmod
19	fly	fly	VERB	VerbForm=Inf	12 nests	conj
20	?	?	PUNCT	_	3 happen	punct

#	verb	tense, mood	who	what, whom	where	roles by
1	happen	would				vn occur-48.3-1 «NP V»: agent=Theme
2	reach a condition, not said to happen	past	rats	a island		vn body_motion-49.2-1-1 «NP V NP ADV»: agent=Agent island=Theme
3	nest	present	a bird		the ground	vn berry-13.7 «NP V»: agent=Agent
4	not fly	can	a bird not said here			vn spatial_configuration-47.6-1 «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

Nothing, because rats cannot eat eggs

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Nothing	nothing	PRON	Number=Sing PronType=Neg	root	root
2	,	,	PUNCT	_	7 eat	punct
3	because	because	SCONJ	_	7 eat	mark
4	rats	rat	NOUN	Number=Plur	7 eat	nsubj
5	can	can	AUX	VerbForm=Fin	7 eat	aux
6	not	not	PART	Polarity=Neg	7 eat	advmod
7	eat	eat	VERB	VerbForm=Inf	1 Nothing	conj
8	eggs	egg	NOUN	Number=Plur	7 eat	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	not eat	can	rats	eggs					vn eat-39.1-1 «NP V NP»: agent=Agent egg=Patient

Option 2

The rats would make friends with the bird and help it find food

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 rats	det
2	rats	rat	NOUN	Number=Plur	4 make	nsubj
3	would	would	AUX	VerbForm=Fin	4 make	aux
4	make	make	VERB	VerbForm=Inf	root	root
5	friends	friend	NOUN	Number=Plur	4 make	obj
6	with	with	ADP	_	8 bird	case
7	the	the	DET	Definite=Def PronType=Art	8 bird	det
8	bird	bird	NOUN	Number=Sing	4 make	obl
9	and	and	CCONJ	_	10 help	cc
10	help	help	VERB	VerbForm=Inf	4 make	conj
11	it	it	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	10 help	obj
12	find	find	VERB	VerbForm=Inf	10 help	xcomp
13	food	food	NOUN	Number=Sing	12 find	obj

#	verb	tense, mood	who	what, whom	other	roles by
1	make	would	the rats	friends	with the bird	vn build-26.1-1 «NP.asset V NP»: agent=Asset friend=Product
2	help	infinitive	the rats not said here	bird		vn help-72.1-1-1 «NP V NP S_INF»: agent=Agent it=Beneficiary clause=Theme
3	find	infinitive	bird not said here	food		vn discover-84 «NP V NP»: agent=Agent food=Topic

Option 3

The bird would quickly learn to fly

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 bird	det
2	bird	bird	NOUN	Number=Sing	5 learn	nsubj
3	would	would	AUX	VerbForm=Fin	5 learn	aux
4	quickly	quickly	ADV	_	5 learn	advmod
5	learn	learn	VERB	VerbForm=Inf	root	root
6	to	to	PART	_	7 fly	mark
7	fly	fly	VERB	VerbForm=Inf	5 learn	xcomp

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	learn	would	the bird					quickly property	vn learn-14-2-1 «NP V that S»: agent=Agent clause=Topic
2	fly	to-infinitive	the bird not said here						vn spatial_configuration-47.6-1 «NP V»: agent=Theme

Option 4 · ← Mova's choice · ✓ the right answer

The rats would eat its eggs and chicks, and the bird could die out

The tree, 14 words

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 rats	det
2	rats	rat	NOUN	Number=Plur	4 eat	nsubj
3	would	would	AUX	VerbForm=Fin	4 eat	aux
4	eat	eat	VERB	VerbForm=Inf	root	root
5	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	6 eggs	nmod:poss
6	eggs	egg	NOUN	Number=Plur	4 eat	obj
7	and	and	CCONJ	_	8 chicks	cc
8	chicks	chick	NOUN	Number=Plur	6 eggs	conj
9	,	,	PUNCT	_	14 die	punct
10	and	and	CCONJ	_	14 die	cc
11	the	the	DET	Definite=Def PronType=Art	12 bird	det
12	bird	bird	NOUN	Number=Sing	14 die	nsubj
13	could	could	AUX	VerbForm=Fin	14 die	aux
14	die	die	VERB	VerbForm=Inf	4 eat	conj
15	out	out	ADP	_	14 die	compound:prt

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	eat	would	the rats	its eggs and chicks					vn eat-39.1-1 «NP V NP»: agent=Agent egg=Patient
2	die out	could	the bird						vn calibratable_cos-45.6.1 «NP.attribute V»: agent=Attribute

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/181-strange-islands-komodo-dragons-the-dodo-red-crabs-kakapos-giants-and-dwarfs/t4/