Exam question 2 · Keeping cold: fridges, freezers and heat pumps

Identify the principal reason for which a full glass bottle of water may crack within a freezer.

Mova's choice: option 1 · The right answer: option 1 · right ✓ · Who acts: you, full glass bottle · What happens: identify, crack · To what, where: principal reason

This is exam question 2 of lesson 10 «Keeping cold: fridges, freezers and heat pumps» 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	Identify	identify	VERB	Mood=Imp VerbForm=Fin	root	root
2	the	the	DET	Definite=Def PronType=Art	4 reason	det
3	principal	principal	ADJ	Degree=Pos	4 reason	amod
4	reason	reason	NOUN	Number=Sing	1 Identify	obj
5	for	for	ADP	_	6 which	case
6	which	which	PRON	PronType=Rel	14 crack	obl
7	a	a	DET	Definite=Ind PronType=Art	10 bottle	det
8	full	full	ADJ	Degree=Pos	10 bottle	amod
9	glass	glass	NOUN	Number=Sing	10 bottle	compound
10	bottle	bottle	NOUN	Number=Sing	14 crack	nsubj
11	of	of	ADP	_	12 water	case
12	water	water	NOUN	Number=Sing	10 bottle	nmod
13	may	may	AUX	VerbForm=Fin	14 crack	aux
14	crack	crack	VERB	VerbForm=Inf	4 reason	acl
15	within	within	ADP	_	17 freezer	case
16	a	a	DET	Definite=Ind PronType=Art	17 freezer	det
17	freezer	freezer	NOUN	Number=Sing	14 crack	obl
18	.	.	PUNCT	_	1 Identify	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	identify	imperative	you not said here	the principal reason					vn characterize-29.2-1-1 «NP V NP S_ING»: agent=Agent reason=Theme
2	crack	may	a full glass bottle of water					for the principal reason; within a freezer	vn sound_emission-43.2 «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 · ✓ the right answer

Water expands upon freezing

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Water	water	NOUN	Number=Sing	2 expands	nsubj
2	expands	expand	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	upon	upon	ADP	_	4 freezing	case
4	freezing	freezing	NOUN	Number=Sing	2 expands	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	expand	present	Water					upon freezing	vn other_cos-45.4 «NP.patient V»: agent=Patient

Option 2

Ice is heavier than glass

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Ice	ice	NOUN	Number=Sing	3 heavier	nsubj
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 heavier	cop
3	heavier	heavy	ADJ	Degree=Cmp	root	root
4	than	than	ADP	_	5 glass	case
5	glass	glass	NOUN	Number=Sing	3 heavier	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	Ice					than glass; heavy property	tree rules

Option 3

The freezer compresses all its contents

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 freezer	det
2	freezer	freezer	NOUN	Number=Sing	3 compresses	nsubj
3	compresses	compress	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	all	all	DET	PronType=Tot	6 contents	det:predet
5	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	6 contents	nmod:poss
6	contents	contents	NOUN	Number=Ptan	3 compresses	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	compress	present	the freezer	freezer's contents					vn bend-45.2 «NP V NP.patient»: agent=Agent contents=Patient

Option 4

Glass contracts to nothing at low temperatures

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Glass	glass	NOUN	Number=Sing	2 contracts	compound
2	contracts	contract	NOUN	Number=Plur	root	root
3	to	to	ADP	_	4 nothing	case
4	nothing	nothing	PRON	Number=Sing PronType=Neg	2 contracts	nmod
5	at	at	ADP	_	7 temperatures	case
6	low	low	ADJ	Degree=Pos	7 temperatures	amod
7	temperatures	temperature	NOUN	Number=Plur	4 nothing	nmod

The frames reader finds no event or fact in this sentence.

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.

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