Exam question 1 · Bangs and loud sounds: firecrackers and ears

Identify the principal mechanism by which a firecracker produces its report.

Mova's choice: option 3 · The right answer: option 3 · right ✓ · Who acts: you, firecracker · What happens: identify, produce, report · To what, where: principal mechanism, report

This is exam question 1 of lesson 19 «Bangs and loud sounds: firecrackers and ears» of the physics 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 mechanism	det
3	principal	principal	ADJ	Degree=Pos	4 mechanism	amod
4	mechanism	mechanism	NOUN	Number=Sing	1 Identify	obj
5	by	by	ADP	_	6 which	case
6	which	which	PRON	PronType=Rel	9 produces	obl
7	a	a	DET	Definite=Ind PronType=Art	8 firecracker	det
8	firecracker	firecracker	NOUN	Number=Sing	9 produces	nsubj
9	produces	produce	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 mechanism	acl:relcl
10	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	11 report	nmod:poss
11	report	report	NOUN	Number=Sing	9 produces	obj
12	.	.	PUNCT	_	1 Identify	punct

#	verb	tense, mood	who	what, whom	other	roles by
1	identify	imperative	you not said here	the principal mechanism		vn characterize-29.2-1-1 «NP V NP S_ING»: agent=Agent mechanism=Theme
2	produce	present	a firecracker	firecracker's report	by the principal mechanism	vn create-26.4 «NP V NP»: agent=Agent report=Result
3	report		firecracker			nom report «communication transitive»: poss=agent

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

The emission of intense light

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 emission	det
2	emission	emission	NOUN	Number=Sing	root	root
3	of	of	ADP	_	5 light	case
4	intense	intense	ADJ	Degree=Pos	5 light	amod
5	light	light	NOUN	Number=Sing	2 emission	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	emit			intense light					nom emission «act transitive»: of=patient

Option 2

The rupture of the paper casing alone

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 rupture	det
2	rupture	rupture	NOUN	Number=Sing	root	root
3	of	of	ADP	_	5 paper	case
4	the	the	DET	Definite=Def PronType=Art	5 paper	det
5	paper	paper	NOUN	Number=Sing	2 rupture	nmod
6	casing	case	VERB	VerbForm=Ger	2 rupture	acl
7	alone	alone	ADV	_	6 casing	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	case	gerund	the rupture of the paper not said here					alone property	vn pocket-9.10 «NP V NP.theme»: agent=Agent
2	rupture			the paper					nom rupture «state transitive»: of=patient

Option 3 · ← Mova's choice · ✓ the right answer

The rapid conversion of its charge into hot gas, which displaces the air in a single pressure wave

The tree, 18 words

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	3 conversion	det
2	rapid	rapid	ADJ	Degree=Pos	3 conversion	amod
3	conversion	conversion	NOUN	Number=Sing	12 displaces	nsubj
4	of	of	ADP	_	6 charge	case
5	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	6 charge	nmod:poss
6	charge	charge	NOUN	Number=Sing	3 conversion	nmod
7	into	into	ADP	_	9 gas	case
8	hot	hot	ADJ	Degree=Pos	9 gas	amod
9	gas	gas	NOUN	Number=Sing	3 conversion	nmod
10	,	,	PUNCT	_	12 displaces	punct
11	which	which	PRON	PronType=Rel	12 displaces	nsubj
12	displaces	displace	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
13	the	the	DET	Definite=Def PronType=Art	14 air	det
14	air	air	NOUN	Number=Sing	12 displaces	obj
15	in	in	ADP	_	19 wave	case
16	a	a	DET	Definite=Ind PronType=Art	19 wave	det
17	single	single	ADJ	Degree=Pos	19 wave	amod
18	pressure	pressure	NOUN	Number=Sing	19 wave	compound
19	wave	wave	NOUN	Number=Sing	12 displaces	obl

#	verb	tense, mood	who	what, whom	where	roles by
1	displace	present	the rapid conversion of conversion's charge into hot gas	the air	a single pressure wave	tree rules
2	convert			conversion's charge	hot gas	nom conversion «event transitive»: of=patient into=place
3	charge		conversion			nom charge «act transitive»: poss=agent

Option 4

The vibration of a metallic component within the casing

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 vibration	det
2	vibration	vibration	NOUN	Number=Sing	root	root
3	of	of	ADP	_	6 component	case
4	a	a	DET	Definite=Ind PronType=Art	6 component	det
5	metallic	metallic	ADJ	Degree=Pos	6 component	amod
6	component	component	NOUN	Number=Sing	2 vibration	nmod
7	within	within	ADP	_	9 casing	case
8	the	the	DET	Definite=Def PronType=Art	9 casing	det
9	casing	casing	NOUN	Number=Sing	6 component	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	vibrate		a metallic component within the casing						nom vibration «act intransitive»: of=agent

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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