Test 6 · ★ · Coral reef builders: polyps, bleaching, sand from parrotfi…

Why would a reef not grow in deep, dark water off a tropical island?

Mova's choice: option 4 · The right answer: option 4 · right ✓ · What happens: not grow · To what, where: reef, deep dark water

This is test 6 · ★ of lesson 172 «Coral reef builders: polyps, bleaching, sand from parrotfish and giant clams» 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	Why	why	ADV	PronType=Int	4 reef	advmod
2	would	would	AUX	VerbForm=Fin	4 reef	aux
3	a	a	DET	Definite=Ind PronType=Art	4 reef	det
4	reef	reef	NOUN	Number=Sing	6 grow	obl
5	not	not	PART	Polarity=Neg	6 grow	advmod
6	grow	grow	VERB	Mood=Ind Number=Sing Person=1 Tense=Pres VerbForm=Fin	root	root
7	in	in	ADP	_	11 water	case
8	deep	deep	ADJ	Degree=Pos	11 water	amod
9	,	,	PUNCT	_	8 deep	punct
10	dark	dark	ADJ	Degree=Pos	11 water	amod
11	water	water	NOUN	Number=Sing	6 grow	obl
12	off	off	ADP	_	15 island	case
13	a	a	DET	Definite=Ind PronType=Art	15 island	det
14	tropical	tropical	ADJ	Degree=Pos	15 island	amod
15	island	island	NOUN	Number=Sing	6 grow	obl
16	?	?	PUNCT	_	6 grow	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	not grow	present		a reef		deep dark water		off a tropical island	vn appear-48.1.1 «NP V PP.location»: agent=Theme in water=Location

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

Corals hate salt water

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Corals	coral	NOUN	Number=Plur	2 hate	nsubj
2	hate	hate	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	salt	salt	NOUN	Number=Sing	4 water	compound
4	water	water	NOUN	Number=Sing	2 hate	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	hate	present	Corals	salt water					vn admire-31.2-1 «NP V NP»: agent=Experiencer water=Stimulus

Option 2

The water there is too warm

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 water	det
2	water	water	NOUN	Number=Sing	4 is	nsubj
3	there	there	PRON	PronType=Dem	4 is	expl
4	is	be	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
5	too	too	ADV	_	6 warm	advmod
6	warm	warm	ADJ	Degree=Pos	4 is	xcomp

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	be	present	the water			there		warm property	vn exist-47.1 «NP V»: agent=Theme

Option 3

Fish eat all the corals there, so none are left to grow

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Fish	fish	NOUN	Number=Plur	2 eat	nsubj
2	eat	eat	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	all	all	DET	PronType=Tot	5 corals	det:predet
4	the	the	DET	Definite=Def PronType=Art	5 corals	det
5	corals	coral	NOUN	Number=Plur	2 eat	obj
6	there	there	ADV	PronType=Dem	2 eat	advmod
7	,	,	PUNCT	_	11 left	punct
8	so	so	ADV	_	11 left	advmod
9	none	none	PRON	PronType=Neg	11 left	nsubj
10	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	11 left	aux:pass
11	left	leave	VERB	Tense=Past VerbForm=Part Voice=Pass	2 eat	parataxis
12	to	to	PART	_	13 grow	mark
13	grow	grow	VERB	VerbForm=Inf	11 left	advcl

#	verb	tense, mood	who	what, whom	where	roles by
1	eat	present	Fish	all corals	there	vn eat-39.1-1 «NP V NP»: agent=Agent coral=Patient
2	leave	present · passive		none		vn keep-15.2 «NP V NP»: subject=Theme
3	grow	to-infinitive				vn appear-48.1.1 «NP V»: agent=Theme

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

The algae inside the polyps need sunlight to make food

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 algae	det
2	algae	alga	NOUN	Number=Plur	6 need	nsubj
3	inside	inside	ADP	_	5 polyps	case
4	the	the	DET	Definite=Def PronType=Art	5 polyps	det
5	polyps	polyp	NOUN	Number=Plur	2 algae	nmod
6	need	need	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
7	sunlight	sunlight	NOUN	Number=Sing	6 need	obj
8	to	to	PART	_	9 make	mark
9	make	make	VERB	VerbForm=Inf	6 need	advcl
10	food	food	NOUN	Number=Sing	9 make	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	need	present	the algae inside the polyps	sunlight					vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot sunlight=Theme
2	make	to-infinitive	the algae inside the polyps not said here	food					vn build-26.1-1 «NP.asset V NP»: agent=Asset food=Product

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/172-coral-reef-builders-polyps-bleaching-sand-from-parrotfish-and-giant-clams/t6/