Exam question 2 · The air we breathe

Which of the following statements most accurately characterises the function of the ozone layer?

Mova's choice: option 1 · The right answer: option 3 · wrong ✗ · What happens: follow, characteris · To what, where: function

This is exam question 2 of lesson 33 «The air we breathe» of the chemistry course of Mova's primary school, asked in stiff, formal language. 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	Which	which	PRON	PronType=Rel	8 characterises	nsubj
2	of	of	ADP	_	5 statements	case
3	the	the	DET	Definite=Def PronType=Art	5 statements	det
4	following	follow	VERB	VerbForm=Ger	5 statements	amod
5	statements	statement	NOUN	Number=Plur	8 characterises	obl
6	most	most	ADV	Degree=Sup	7 accurately	advmod
7	accurately	accurately	ADV	_	8 characterises	advmod
8	characterises	characteris	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
9	the	the	DET	Definite=Def PronType=Art	10 function	det
10	function	function	NOUN	Number=Sing	8 characterises	obj
11	of	of	ADP	_	14 layer	case
12	the	the	DET	Definite=Def PronType=Art	14 layer	det
13	ozone	ozone	NOUN	Number=Sing	14 layer	compound
14	layer	layer	NOUN	Number=Sing	10 function	nmod
15	?	?	PUNCT	_	8 characterises	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	follow	gerund							vn occur-48.3-1 «NP V»: agent=Theme
2	characteris	present		the function of the ozone layer				of the following statements; accurately property	tree rules

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 retains the oxygen within the atmosphere

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	2 retains	nsubj
2	retains	retain	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	the	the	DET	Definite=Def PronType=Art	4 oxygen	det
4	oxygen	oxygen	NOUN	Number=Sing	2 retains	obj
5	within	within	ADP	_	7 atmosphere	case
6	the	the	DET	Definite=Def PronType=Art	7 atmosphere	det
7	atmosphere	atmosphere	NOUN	Number=Sing	2 retains	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	retain	present	It	the oxygen				within the atmosphere	tree rules

Option 2

It produces the blue colour of the sky

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	2 produces	nsubj
2	produces	produce	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	the	the	DET	Definite=Def PronType=Art	5 colour	det
4	blue	blue	ADJ	Degree=Pos	5 colour	amod
5	colour	colour	NOUN	Number=Sing	2 produces	obj
6	of	of	ADP	_	8 sky	case
7	the	the	DET	Definite=Def PronType=Art	8 sky	det
8	sky	sky	NOUN	Number=Sing	5 colour	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	produce	present	It	the blue colour of the sky					vn create-26.4 «NP V NP»: agent=Agent colour=Result

Option 3 · ✓ the right answer

It absorbs much of the harmful ultraviolet radiation from the Sun

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	2 absorbs	nsubj
2	absorbs	absorb	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	much	much	ADJ	Degree=Pos	2 absorbs	obj
4	of	of	ADP	_	8 radiation	case
5	the	the	DET	Definite=Def PronType=Art	8 radiation	det
6	harmful	harmful	ADJ	Degree=Pos	8 radiation	amod
7	ultraviolet	ultraviolet	ADJ	Degree=Pos	8 radiation	amod
8	radiation	radiation	NOUN	Number=Sing	3 much	nmod
9	from	from	ADP	_	11 Sun	case
10	the	the	DET	Definite=Def PronType=Art	11 Sun	det
11	Sun	Sun	PROPN	Number=Sing	8 radiation	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	absorb	present	It	much of the harmful ultraviolet radiation from the Sun					vn absorb-39.8 «NP V NP»: agent=Goal much=Theme

Option 4

It supports the weight of the clouds

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	2 supports	nsubj
2	supports	support	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	the	the	DET	Definite=Def PronType=Art	4 weight	det
4	weight	weight	NOUN	Number=Sing	2 supports	obj
5	of	of	ADP	_	7 clouds	case
6	the	the	DET	Definite=Def PronType=Art	7 clouds	det
7	clouds	cloud	NOUN	Number=Plur	4 weight	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	support	present	It	the weight of the clouds					vn admire-31.2 «NP V NP»: agent=Experiencer weight=Stimulus

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/chemistry/33-the-air-we-breathe/e2/