Test 1 · ★ · Air and why we need it

If all green plants disappeared, what would slowly happen to the air?

Mova's choice: option 1 · The right answer: option 2 · wrong ✗ · Who acts: green plants · What happens: disappear, happen

This is test 1 · ★ of lesson 17 «Air and why we need it» 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

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	If	if	SCONJ	_	5 disappeared	mark
2	all	all	DET	PronType=Tot	4 plants	det
3	green	green	ADJ	Degree=Pos	4 plants	amod
4	plants	plant	NOUN	Number=Plur	5 disappeared	nsubj
5	disappeared	disappear	VERB	Mood=Ind Number=Plur Person=3 Tense=Past VerbForm=Fin	10 happen	advcl
6	,	,	PUNCT	_	5 disappeared	punct
7	what	what	PRON	PronType=Int	10 happen	nsubj
8	would	would	AUX	VerbForm=Fin	10 happen	aux
9	slowly	slowly	ADV	_	10 happen	advmod
10	happen	happen	VERB	VerbForm=Inf	root	root
11	to	to	ADP	_	13 air	case
12	the	the	DET	Definite=Def PronType=Art	13 air	det
13	air	air	NOUN	Number=Sing	10 happen	obl
14	?	?	PUNCT	_	10 happen	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	disappear a condition, not said to happen	past	all green plants						vn disappearance-48.2-1 «NP V»: agent=Theme
2	happen	would						to the air; slowly property	vn occur-48.3-1 «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 · ← Mova's choice

It would get more and more oxygen

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	It	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	3 get	nsubj
2	would	would	AUX	VerbForm=Fin	3 get	aux
3	get	get	VERB	VerbForm=Inf	root	root
4	more	more	ADJ	Degree=Cmp	7 oxygen	amod
5	and	and	CCONJ	_	6 more	cc
6	more	more	ADJ	Degree=Cmp	4 more	conj
7	oxygen	oxygen	NOUN	Number=Sing	3 get	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	get	would	It	more oxygen					vn comprehend-87.2-1 «NP V NP»: agent=Experiencer oxygen=Stimulus

Option 2 · ✓ the right answer

Its oxygen would run low and its carbon dioxide would grow

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	2 oxygen	nmod:poss
2	oxygen	oxygen	NOUN	Number=Sing	4 run	nsubj
3	would	would	AUX	VerbForm=Fin	4 run	aux
4	run	run	VERB	VerbForm=Inf	root	root
5	low	low	ADV	Degree=Pos	4 run	advmod
6	and	and	CCONJ	_	11 grow	cc
7	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	9 dioxide	nmod:poss
8	carbon	carbon	NOUN	Number=Sing	9 dioxide	compound
9	dioxide	dioxide	NOUN	Number=Sing	11 grow	nsubj
10	would	would	AUX	VerbForm=Fin	11 grow	aux
11	grow	grow	VERB	VerbForm=Inf	4 run	conj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	run	would	Its oxygen					low property	vn run-51.3.2-2-1 «NP V»: agent=Theme
2	grow	would	oxygen's carbon dioxide						vn appear-48.1.1 «NP V»: agent=Theme

Option 3

Nothing, because animals make oxygen

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	_	5 make	punct
3	because	because	SCONJ	_	5 make	mark
4	animals	animal	NOUN	Number=Plur	5 make	nsubj
5	make	make	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	1 Nothing	parataxis
6	oxygen	oxygen	NOUN	Number=Sing	5 make	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	make	present	animals	oxygen					vn build-26.1-1 «NP V NP»: agent=Agent oxygen=Product

Option 4

It would all turn into water vapour

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	It	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	4 turn	nsubj
2	would	would	AUX	VerbForm=Fin	4 turn	aux
3	all	all	ADV	_	4 turn	advmod
4	turn	turn	VERB	VerbForm=Inf	root	root
5	into	into	ADP	_	7 vapour	case
6	water	water	NOUN	Number=Sing	7 vapour	compound
7	vapour	vapour	NOUN	Number=Sing	4 turn	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	turn	would	It			water vapour		all property	vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme into vapour=Trajectory

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/17-air-oxygen-carbon-dioxide/t1/