Exam question 3 · Acids in the kitchen

Which of the following statements most accurately characterises the protection of the stomach against its own acid?

Mova's choice: option 1 · The right answer: option 1 · right ✓ · What happens: follow, characteris, protect · To what, where: protection, stomach

This is exam question 3 of lesson 15 «Acids in the kitchen» 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 protection	det
10	protection	protection	NOUN	Number=Sing	8 characterises	obj
11	of	of	ADP	_	13 stomach	case
12	the	the	DET	Definite=Def PronType=Art	13 stomach	det
13	stomach	stomach	NOUN	Number=Sing	10 protection	nmod
14	against	against	ADP	_	17 acid	case
15	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	17 acid	nmod:poss
16	own	own	ADJ	Degree=Pos	17 acid	amod
17	acid	acid	NOUN	Number=Sing	13 stomach	nmod
18	?	?	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 protection of the stomach against stomach's own acid	of the following statements; accurately property	tree rules
3	protect		the stomach against stomach's own acid		nom protection «act transitive»: of=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 · ← Mova's choice · ✓ the right answer

The stomach wall is protected by a layer of mucus

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	3 wall	det
2	stomach	stomach	NOUN	Number=Sing	3 wall	compound
3	wall	wall	NOUN	Number=Sing	5 protected	nsubj:pass
4	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	5 protected	aux:pass
5	protected	protect	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
6	by	by	ADP	_	8 layer	case
7	a	a	DET	Definite=Ind PronType=Art	8 layer	det
8	layer	layer	NOUN	Number=Sing	5 protected	obl:agent
9	of	of	ADP	_	10 mucus	case
10	mucus	mucus	NOUN	Number=Sing	8 layer	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	protect	present · passive	a layer of mucus	the stomach wall					vn defend-72.3 «NP V NP»: agent=Agent subject=Beneficiary

Option 2

The stomach is lined with a thin layer of bone

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 stomach	det
2	stomach	stomach	NOUN	Number=Sing	4 lined	nsubj:pass
3	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 lined	aux:pass
4	lined	line	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
5	with	with	ADP	_	8 layer	case
6	a	a	DET	Definite=Ind PronType=Art	8 layer	det
7	thin	thin	ADJ	Degree=Pos	8 layer	amod
8	layer	layer	NOUN	Number=Sing	4 lined	obl
9	of	of	ADP	_	10 bone	case
10	bone	bone	NOUN	Number=Sing	8 layer	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	line	present · passive		the stomach				with a thin layer of bone	vn fill-9.8-1 «NP V NP PP.theme»: subject=Destination with layer=Theme

Option 3

The stomach acid is too weak to harm tissue

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	3 acid	det
2	stomach	stomach	NOUN	Number=Sing	3 acid	compound
3	acid	acid	NOUN	Number=Sing	6 weak	nsubj
4	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	6 weak	cop
5	too	too	ADV	_	6 weak	advmod
6	weak	weak	ADJ	Degree=Pos	root	root
7	to	to	PART	_	8 harm	mark
8	harm	harm	VERB	VerbForm=Inf	6 weak	advcl
9	tissue	tissue	NOUN	Number=Sing	8 harm	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	the stomach acid					weak property	tree rules
2	harm	to-infinitive	the stomach acid not said here	tissue					vn amuse-31.1 «NP V NP»: agent=Stimulus tissue=Experiencer

Option 4

The acid is produced exclusively during sleep

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 acid	det
2	acid	acid	NOUN	Number=Sing	4 produced	nsubj:pass
3	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 produced	aux:pass
4	produced	produce	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
5	exclusively	exclusively	ADV	_	4 produced	advmod
6	during	during	ADP	_	7 sleep	case
7	sleep	sleep	NOUN	Number=Sing	4 produced	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	produce	present · passive		the acid			during sleep	exclusively property	vn create-26.4 «NP V NP»: subject=Result

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/15-acids-in-the-kitchen/e3/