Test 11 · ★★ · Vents and trenches: tubeworms, iron snails, the Challenger…

Why might some scientists think life on Earth started at vents?

Mova's choice: option 1 · The right answer: option 2 · wrong ✗ · Who acts: scientists, life · What happens: think, start · To what, where: vents · Speech: someone speaks here

This is test 11 · ★★ of lesson 177 «Vents and trenches: tubeworms, iron snails, the Challenger Deep and life without sunlight» 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	5 think	advmod
2	might	might	AUX	VerbForm=Fin	5 think	aux
3	some	some	DET	PronType=Ind	4 scientists	det
4	scientists	scientist	NOUN	Number=Plur	5 think	nsubj
5	think	think	VERB	Mood=Ind Number=Sing Person=1 Tense=Pres VerbForm=Fin	root	root
6	life	life	NOUN	Number=Sing	9 started	nsubj
7	on	on	ADP	_	8 Earth	case
8	Earth	Earth	PROPN	Number=Sing	6 life	nmod
9	started	start	VERB	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	5 think	ccomp
10	at	at	ADP	_	11 vents	case
11	vents	vent	NOUN	Number=Plur	9 started	obl
12	?	?	PUNCT	_	5 think	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	think speech: other	might	some scientists						vn consider-29.9-2 «NP V how S»: agent=Agent clause=Theme
2	start	past	life on Earth			vents			vn begin-55.1-1-1 «NP.eventuality V»: agent=Eventuality

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 · ← Mova's choice

Vents are the warmest place on the surface of the Earth, warmer than deserts

The tree, 14 words

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Vents	vent	NOUN	Number=Plur	5 place	nsubj
2	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	5 place	cop
3	the	the	DET	Definite=Def PronType=Art	5 place	det
4	warmest	warm	ADJ	Degree=Sup	5 place	amod
5	place	place	NOUN	Number=Sing	root	root
6	on	on	ADP	_	8 surface	case
7	the	the	DET	Definite=Def PronType=Art	8 surface	det
8	surface	surface	NOUN	Number=Sing	5 place	nmod
9	of	of	ADP	_	11 Earth	case
10	the	the	DET	Definite=Def PronType=Art	11 Earth	det
11	Earth	Earth	PROPN	Number=Sing	8 surface	nmod
12	,	,	PUNCT	_	13 warmer	punct
13	warmer	warm	ADJ	Degree=Cmp	5 place	amod
14	than	than	ADP	_	15 deserts	case
15	deserts	desert	NOUN	Number=Plur	13 warmer	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is a	present	Vents	the warmest place		the surface of the Earth			tree rules

Option 2 · ✓ the right answer

Vents give energy from chemicals without needing sunlight

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Vents	vent	NOUN	Number=Plur	2 give	nsubj
2	give	give	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	energy	energy	NOUN	Number=Sing	2 give	obj
4	from	from	ADP	_	5 chemicals	case
5	chemicals	chemical	NOUN	Number=Plur	2 give	obl
6	without	without	SCONJ	_	7 needing	mark
7	needing	need	VERB	VerbForm=Ger	2 give	advcl
8	sunlight	sunlight	NOUN	Number=Sing	7 needing	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	give	present	Vents	energy		chemicals			vn give-13.1-1 «NP V NP»: agent=Agent energy=Theme
2	need	gerund	Vents not said here	sunlight					vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot sunlight=Theme

Option 3

Dinosaurs lived at vents

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Dinosaurs	dinosaur	NOUN	Number=Plur	2 lived	nsubj
2	lived	live	VERB	Mood=Ind Number=Plur Person=3 Tense=Past VerbForm=Fin	root	root
3	at	at	ADP	_	4 vents	case
4	vents	vent	NOUN	Number=Plur	2 lived	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	live	past	Dinosaurs			vents			vn lodge-46 «NP V PP.location»: agent=Theme at vent=Location

Option 4

Vents are full of sunlight

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Vents	vent	NOUN	Number=Plur	3 full	nsubj
2	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	3 full	cop
3	full	full	ADJ	Degree=Pos	root	root
4	of	of	ADP	_	5 sunlight	case
5	sunlight	sunlight	NOUN	Number=Sing	3 full	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	Vents					of sunlight; full property	tree rules

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/177-vents-and-trenches-tubeworms-iron-snails-the-challenger-deep-and-life-without-sunlight/t11/