Exam question 1 · Plastics: useful and stubborn

Which of the following statements most accurately characterises the molecular structure of plastics?

Mova's choice: option 1 · The right answer: option 2 · wrong ✗ · What happens: follow, characteris · To what, where: molecular structure

This is exam question 1 of lesson 29 «Plastics: useful and stubborn» 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	11 structure	det
10	molecular	molecular	ADJ	Degree=Pos	11 structure	amod
11	structure	structure	NOUN	Number=Sing	8 characterises	obj
12	of	of	ADP	_	13 plastics	case
13	plastics	plastic	NOUN	Number=Plur	11 structure	nmod
14	?	?	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 molecular structure of plastics				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

They consist of crystals of sand fused by heat

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	2 consist	nsubj
2	consist	consist	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	of	of	ADP	_	4 crystals	case
4	crystals	crystal	NOUN	Number=Plur	2 consist	obl
5	of	of	ADP	_	6 sand	case
6	sand	sand	NOUN	Number=Sing	4 crystals	nmod
7	fused	fuse	VERB	Tense=Past VerbForm=Part Voice=Pass	6 sand	acl
8	by	by	ADP	_	9 heat	case
9	heat	heat	NOUN	Number=Sing	7 fused	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	consist	present	They					of crystals of sand	tree rules
2	fuse	participle		sand not said here				by heat	vn mix-22.1-1-1 «NP V»: agent=Patient

Option 2 · ✓ the right answer

They consist of very long chain molecules termed polymers

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	2 consist	nsubj
2	consist	consist	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	of	of	ADP	_	7 molecules	case
4	very	very	ADV	_	5 long	advmod
5	long	long	ADJ	Degree=Pos	7 molecules	amod
6	chain	chain	NOUN	Number=Sing	7 molecules	compound
7	molecules	molecule	NOUN	Number=Plur	2 consist	obl
8	termed	term	VERB	Tense=Past VerbForm=Part Voice=Pass	9 polymers	amod
9	polymers	polymer	NOUN	Number=Plur	7 molecules	conj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	consist	present	They					of long chain molecules and termed polymers	tree rules
2	term	participle							vn dub-29.3.2 «NP V NP»: agent=Agent

Option 3

They consist of individual atoms of a single metal

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	2 consist	nsubj
2	consist	consist	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	of	of	ADP	_	5 atoms	case
4	individual	individual	ADJ	Degree=Pos	5 atoms	amod
5	atoms	atom	NOUN	Number=Plur	2 consist	obl
6	of	of	ADP	_	9 metal	case
7	a	a	DET	Definite=Ind PronType=Art	9 metal	det
8	single	single	ADJ	Degree=Pos	9 metal	amod
9	metal	metal	NOUN	Number=Sing	5 atoms	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	consist	present	They					of individual atoms of a single metal	tree rules

Option 4

They consist of small spherical molecules of water

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	2 consist	nsubj
2	consist	consist	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	of	of	ADP	_	6 molecules	case
4	small	small	ADJ	Degree=Pos	6 molecules	amod
5	spherical	spherical	ADJ	Degree=Pos	6 molecules	amod
6	molecules	molecule	NOUN	Number=Plur	2 consist	obl
7	of	of	ADP	_	8 water	case
8	water	water	NOUN	Number=Sing	6 molecules	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	consist	present	They					of small spherical molecules of water	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/chemistry/29-plastics-useful-stubborn/e1/