Exam question 1 · Escalators and lifts

Which of the following statements most accurately characterises the function of the brushes affixed to the sides of an escalator?

Mova's choice: option 4 · The right answer: option 4 · right ✓ · What happens: follow, characteris, affix · To what, where: function, brushes

This is exam question 1 of lesson 26 «Escalators and lifts» of the technology 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	_	13 brushes	case
12	the	the	DET	Definite=Def PronType=Art	13 brushes	det
13	brushes	brush	NOUN	Number=Plur	10 function	nmod
14	affixed	affix	VERB	Tense=Past VerbForm=Part Voice=Pass	13 brushes	acl
15	to	to	ADP	_	17 sides	case
16	the	the	DET	Definite=Def PronType=Art	17 sides	det
17	sides	side	NOUN	Number=Plur	14 affixed	obl
18	of	of	ADP	_	20 escalator	case
19	an	a	DET	Definite=Ind PronType=Art	20 escalator	det
20	escalator	escalator	NOUN	Number=Sing	17 sides	nmod
21	?	?	PUNCT	_	8 characterises	punct

#	verb	tense, mood	what, whom	other	roles by
1	follow	gerund			vn occur-48.3-1 «NP V»: agent=Theme
2	characteris	present	the function of the brushes	of the following statements; accurately property	tree rules
3	affix	participle	the brushes not said here	to the sides of a escalator	vn tape-22.4 «NP V ADV-Middle PP»: agent=Patient to side=Co-Patient

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

They are provided for the cleaning of passengers' footwear

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	3 provided	nsubj
2	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	3 provided	aux:pass
3	provided	provide	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
4	for	for	ADP	_	6 cleaning	case
5	the	the	DET	Definite=Def PronType=Art	6 cleaning	det
6	cleaning	cleaning	NOUN	Number=Sing	3 provided	obl
7	of	of	ADP	_	10 footwear	case
8	passengers	passenger	NOUN	Number=Plur	10 footwear	nmod:poss
9	'	's	PART	_	8 passengers	case
10	footwear	footwear	NOUN	Number=Sing	6 cleaning	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	provide	present · passive		They				for the cleaning of passengers's footwear	vn ensure-99 «NP V NP PP.beneficiary»: subject=Theme for cleaning=Beneficiary
2	clean		passengers's footwear						nom cleaning «act intransitive»: of=agent

Option 2

They serve to warm the steps in winter

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 serve	nsubj
2	serve	serve	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	to	to	PART	_	4 warm	mark
4	warm	warm	VERB	VerbForm=Inf	2 serve	xcomp
5	the	the	DET	Definite=Def PronType=Art	6 steps	det
6	steps	step	NOUN	Number=Plur	4 warm	obj
7	in	in	ADP	_	8 winter	case
8	winter	winter	NOUN	Number=Sing	4 warm	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	serve	present	They						tree rules
2	warm	to-infinitive	They not said here	the steps			winter		vn other_cos-45.4 «NP V NP.patient»: agent=Agent step=Patient

Option 3

They are intended to collect coins and small objects

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	3 intended	nsubj:pass
2	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	3 intended	aux:pass
3	intended	intend	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
4	to	to	PART	_	5 collect	mark
5	collect	collect	VERB	VerbForm=Inf	3 intended	xcomp
6	coins	coin	NOUN	Number=Plur	5 collect	obj
7	and	and	CCONJ	_	9 objects	cc
8	small	small	ADJ	Degree=Pos	9 objects	amod
9	objects	object	NOUN	Number=Plur	6 coins	conj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	intend	present · passive		They					tree rules
2	collect not said to happen	to-infinitive		coins and small objects					vn obtain-13.5.2 «NP V NP»: agent=Agent coin=Theme

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

They serve to remind passengers to keep their feet clear of the gap between the steps and the side

The tree, 19 words

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 serve	nsubj
2	serve	serve	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	to	to	PART	_	4 remind	mark
4	remind	remind	VERB	VerbForm=Inf	2 serve	advcl
5	passengers	passenger	NOUN	Number=Plur	4 remind	obj
6	to	to	PART	_	7 keep	mark
7	keep	keep	VERB	VerbForm=Inf	4 remind	xcomp
8	their	their	PRON	Case=Gen Number=Plur Person=3 Poss=Yes PronType=Prs	9 feet	nmod:poss
9	feet	foot	NOUN	Number=Plur	7 keep	obj
10	clear	clear	ADJ	Degree=Pos	7 keep	xcomp
11	of	of	ADP	_	13 gap	case
12	the	the	DET	Definite=Def PronType=Art	13 gap	det
13	gap	gap	NOUN	Number=Sing	10 clear	obl
14	between	between	ADP	_	16 steps	case
15	the	the	DET	Definite=Def PronType=Art	16 steps	det
16	steps	step	NOUN	Number=Plur	13 gap	nmod
17	and	and	CCONJ	_	19 side	cc
18	the	the	DET	Definite=Def PronType=Art	19 side	det
19	side	side	NOUN	Number=Sing	16 steps	conj

#	verb	tense, mood	who	what, whom	to whom	other	roles by
1	serve	present	They				vn masquerade-29.6-2 «NP V PP.attribute»: agent=Agent
2	remind speech: other	to-infinitive	They not said here		passengers		vn tell-37.2 «NP V NP.recipient S»: agent=Agent passenger=Recipient clause=Topic
3	keep	to-infinitive	They not said here	passengers's feet		clear property	vn keep-15.2 «NP V NP»: agent=Agent foot=Theme

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/technology/26-escalators-and-lifts/e1/