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Test 6 · ★★★ · Balance in a food web

Bees pollinate a meadow's flowers, birds eat the seeds, and foxes hunt the birds. Bees vanish. Who may suffer, even though they never eat bees?

Mova's choice: option 4 · The right answer: option 4 · right ✓ · Who acts: Bees, birds, foxes · What happens: pollinate, eat, hunt, vanish, suffer, not eat · To what, where: flowers, seeds, birds, bees

This is test 6 · ★★★ 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: Bees pollinate a meadow's flowers, birds eat the seeds, and foxes hunt the birds.

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Bees	bee	NOUN	Number=Plur	2 pollinate	nsubj
2	pollinate	pollinate	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	a	a	DET	Definite=Ind PronType=Art	4 meadow	det
4	meadow	meadow	NOUN	Number=Sing	6 flowers	nmod:poss
5	's	's	PART	_	4 meadow	case
6	flowers	flower	NOUN	Number=Plur	2 pollinate	obj
7	,	,	PUNCT	_	9 eat	punct
8	birds	bird	NOUN	Number=Plur	9 eat	nsubj
9	eat	eat	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	2 pollinate	conj
10	the	the	DET	Definite=Def PronType=Art	11 seeds	det
11	seeds	seed	NOUN	Number=Plur	9 eat	obj
12	,	,	PUNCT	_	15 hunt	punct
13	and	and	CCONJ	_	15 hunt	cc
14	foxes	fox	NOUN	Number=Plur	15 hunt	nsubj
15	hunt	hunt	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	2 pollinate	conj
16	the	the	DET	Definite=Def PronType=Art	17 birds	det
17	birds	bird	NOUN	Number=Plur	15 hunt	obj
18	.	.	PUNCT	_	2 pollinate	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	pollinate	present	Bees	a meadow's flowers					tree rules
2	eat	present	birds	the seeds					vn eat-39.1-1 «NP V NP»: agent=Agent seed=Patient
3	hunt	present	foxes	the birds					vn hunt-35.1 «NP V NP»: agent=Agent bird=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.

Sentence 2: Bees vanish.

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Bees	bee	NOUN	Number=Plur	2 vanish	nsubj
2	vanish	vanish	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	.	.	PUNCT	_	2 vanish	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	vanish	present	Bees						vn disappearance-48.2-1 «NP V»: agent=Theme

Sentence 3: Who may suffer, even though they never eat bees?

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Who	who	PRON	PronType=Rel	3 suffer	nsubj
2	may	may	AUX	VerbForm=Fin	3 suffer	aux
3	suffer	suffer	VERB	VerbForm=Inf	root	root
4	,	,	PUNCT	_	9 eat	punct
5	even	even	ADV	_	9 eat	advmod
6	though	though	SCONJ	_	9 eat	mark
7	they	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	9 eat	nsubj
8	never	never	ADV	PronType=Neg	9 eat	advmod
9	eat	eat	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	3 suffer	conj
10	bees	bee	NOUN	Number=Plur	9 eat	obj
11	?	?	PUNCT	_	3 suffer	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	suffer	may							vn marvel-31.3 «NP V»: agent=Experiencer
2	not eat	present	Bees = bee	bees					vn eat-39.1-1 «NP V NP»: agent=Agent bee=Patient

The options

Option 1

Only the bees' nests

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Only	only	ADV	_	3 bees	advmod
2	the	the	DET	Definite=Def PronType=Art	3 bees	det
3	bees	bee	NOUN	Number=Plur	5 nests	nmod:poss
4	'	's	PART	_	3 bees	case
5	nests	nest	NOUN	Number=Plur	root	root

The frames reader finds no event or fact in this sentence.

Option 2

Nobody, because foxes eat birds

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Nobody	nobody	PRON	Number=Sing PronType=Neg	root	root
2	,	,	PUNCT	_	5 eat	punct
3	because	because	SCONJ	_	5 eat	mark
4	foxes	fox	NOUN	Number=Plur	5 eat	nsubj
5	eat	eat	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	1 Nobody	acl:relcl
6	birds	bird	NOUN	Number=Plur	5 eat	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	eat	present	foxes	birds					vn eat-39.1-1 «NP V NP»: agent=Agent bird=Patient

Option 3

Only the flowers, nobody else

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Only	only	ADV	_	3 flowers	advmod
2	the	the	DET	Definite=Def PronType=Art	3 flowers	det
3	flowers	flower	NOUN	Number=Plur	root	root
4	,	,	PUNCT	_	5 nobody	punct
5	nobody	nobody	PRON	Number=Sing PronType=Neg	3 flowers	conj
6	else	else	ADV	_	5 nobody	advmod

The frames reader finds no event or fact in this sentence.

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

The birds and then the foxes

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 birds	det
2	birds	bird	NOUN	Number=Plur	root	root
3	and	and	CCONJ	_	6 foxes	cc
4	then	then	ADV	PronType=Dem	6 foxes	advmod
5	the	the	DET	Definite=Def PronType=Art	6 foxes	det
6	foxes	fox	NOUN	Number=Plur	2 birds	conj

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/t6/