Test 11 · ★ · Indicators: the red-cabbage rainbow

If a lab had no indicators at all, how could a scientist still measure pH?

Mova's choice: option 3 · The right answer: option 3 · right ✓ · Who acts: lab, scientist · What happens: have, measure · To what, where: indicators, all, pH

This is test 11 · ★ of lesson 17 «Indicators: the red-cabbage rainbow» of the chemistry course of Mova's primary school. 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	If	if	SCONJ	_	4 had	mark
2	a	a	DET	Definite=Ind PronType=Art	3 lab	det
3	lab	lab	NOUN	Number=Sing	4 had	nsubj
4	had	have	VERB	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	15 measure	advcl
5	no	no	DET	PronType=Neg	6 indicators	det
6	indicators	indicator	NOUN	Number=Plur	4 had	obj
7	at	at	ADP	_	8 all	case
8	all	all	DET	PronType=Tot	4 had	obl
9	,	,	PUNCT	_	15 measure	punct
10	how	how	ADV	PronType=Int	15 measure	advmod
11	could	could	AUX	VerbForm=Fin	15 measure	aux
12	a	a	DET	Definite=Ind PronType=Art	13 scientist	det
13	scientist	scientist	NOUN	Number=Sing	15 measure	nsubj
14	still	still	ADV	_	15 measure	advmod
15	measure	measure	VERB	VerbForm=Inf	root	root
16	pH	ph	NOUN	Number=Sing	15 measure	obj
17	?	?	PUNCT	_	15 measure	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	have a condition, not said to happen	past	a lab	no indicators		all			vn birth-28.2-1 «NP V NP»: agent=Agent indicator=Patient
2	measure	could	a scientist	pH			still		vn register-54.1-2-1 «NP V NP.value»: agent=Theme ph=Value

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

By tasting every liquid

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	By	by	SCONJ	_	2 tasting	mark
2	tasting	taste	VERB	Tense=Pres VerbForm=Part	root	root
3	every	every	DET	PronType=Tot	4 liquid	det
4	liquid	liquid	NOUN	Number=Sing	2 tasting	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	taste	gerund		every liquid					vn seem-109 «NP V ADJ»: agent=Theme liquid=Attribute

Option 2

By looking at it under a lamp

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	By	by	SCONJ	_	2 looking	mark
2	looking	look	VERB	Tense=Pres VerbForm=Part	root	root
3	at	at	ADP	_	4 it	case
4	it	it	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	2 looking	obl
5	under	under	ADP	_	7 lamp	case
6	a	a	DET	Definite=Ind PronType=Art	7 lamp	det
7	lamp	lamp	NOUN	Number=Sing	2 looking	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	look	gerund						under a lamp; at it	vn peer-30.3 «NP V PP.theme»: agent=Agent at it=Theme

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

With an electronic pH meter

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	With	with	ADP	_	5 meter	case
2	an	a	DET	Definite=Ind PronType=Art	5 meter	det
3	electronic	electronic	ADJ	Degree=Pos	5 meter	amod
4	pH	ph	NOUN	Number=Sing	5 meter	compound
5	meter	meter	NOUN	Number=Sing	root	root

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

Option 4

By weighing the liquid

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	By	by	SCONJ	_	2 weighing	mark
2	weighing	weigh	VERB	Tense=Pres VerbForm=Part	root	root
3	the	the	DET	Definite=Def PronType=Art	4 liquid	det
4	liquid	liquid	NOUN	Number=Sing	2 weighing	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	weigh	gerund		the liquid					vn register-54.1-2-1 «NP V NP.value»: agent=Theme liquid=Value

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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