---
title: It is given that red cabbage juice is added to a solution of baking… — Indicators: the red-cabbage rainbow · tree and pragmatics
description: It is given that red cabbage juice is added to a solution of baking soda. Determine the colour most likely to be observed. Exam question 2 of lesson 17 «Indicators: the red-cabbage rainbow» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and 
---

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# Exam question 2 · Indicators: the red-cabbage rainbow

<!-- .ven lang=en -->
It is given that red cabbage juice is added to a solution of baking soda. Determine the colour most likely to be observed.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** you · **What happens:** give, add, determine, observe · **To what, where:** It, red cabbage juice, colour

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This is exam question 2 of lesson 17 «Indicators: the red-cabbage rainbow» 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](https://md.mova.elamur.ai/free/en/school-run/chemistry/17-indicators-the-red-cabbage-rainbow/#e2).

## The question {#question}

<!-- .note -->
*Sentence 1:* It is given that red cabbage juice is added to a solution of baking soda.

```conllu
# sent_id = question:chemistry:17-indicators-the-red-cabbage-rainbow:e2:1
# text = It is given that red cabbage juice is added to a solution of baking soda.
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj:pass	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	given	give	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	that	that	SCONJ	IN	_	9	mark	_	_
5	red	red	ADJ	JJ	Degree=Pos	7	amod	_	_
6	cabbage	cabbage	NOUN	NN	Number=Sing	7	compound	_	_
7	juice	juice	NOUN	NN	Number=Sing	9	nsubj:pass	_	_
8	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	aux:pass	_	_
9	added	add	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	advcl	_	_
10	to	to	ADP	IN	_	12	case	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
12	solution	solution	NOUN	NN	Number=Sing	9	obl	_	_
13	of	of	ADP	IN	_	15	case	_	_
14	baking	baking	NOUN	NN	Number=Sing	15	compound	_	_
15	soda	soda	NOUN	NN	Number=Sing	12	nmod	_	SpaceAfter=No
16	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **give** | present · passive |  | It |  |  |  |  | vn give-13.1-1 «NP V NP»: subject=Theme |
| 2 | **add** *speech: assert* | present · passive |  | red cabbage juice |  |  |  | to a solution of baking soda | vn mix-22.1-2 «NP V NP PP.co-patient»: subject=Patient to solution=Co-Patient |

<!-- .note -->
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.

<!-- .note -->
*Sentence 2:* Determine the colour most likely to be observed.

```conllu
# sent_id = question:chemistry:17-indicators-the-red-cabbage-rainbow:e2:2
# text = Determine the colour most likely to be observed.
1	Determine	determine	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	colour	colour	NOUN	NN	Number=Sing	1	obj	_	_
4	most	most	ADV	RBS	Degree=Sup	5	advmod	_	_
5	likely	likely	ADJ	JJ	Degree=Pos	3	amod	_	_
6	to	to	PART	TO	_	8	mark	_	_
7	be	be	AUX	VB	VerbForm=Inf	8	aux:pass	_	_
8	observed	observe	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	xcomp	_	SpaceAfter=No
9	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **determine** | imperative | you *not said here* | the colour |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent colour=Topic |
| 2 | **observe** | to-infinitive · passive | you *not said here* |  |  |  |  |  | vn say-37.7-1-1 «NP V that S» |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Pink-red

```conllu
# sent_id = question:chemistry:17-indicators-the-red-cabbage-rainbow:e2:o1:1
# text = Pink-red
1	Pink	pink	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
2	-	-	PUNCT	HYPH	_	3	punct	_	SpaceAfter=No
3	red	red	ADJ	JJ	Degree=Pos	1	conj	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 2 {#o2}

<!-- .ven lang=en -->
Deep black

```conllu
# sent_id = question:chemistry:17-indicators-the-red-cabbage-rainbow:e2:o2:1
# text = Deep black
1	Deep	deep	ADJ	JJ	Degree=Pos	2	amod	_	_
2	black	black	ADJ	JJ	Degree=Pos	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 3 {#o3}

<!-- .ven lang=en -->
Colourless

```conllu
# sent_id = question:chemistry:17-indicators-the-red-cabbage-rainbow:e2:o3:1
# text = Colourless
1	Colourless	colourless	ADJ	JJ	Degree=Pos	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 4 · ✓ the right answer {#o4}

<!-- .ven lang=en -->
Blue-green

```conllu
# sent_id = question:chemistry:17-indicators-the-red-cabbage-rainbow:e2:o4:1
# text = Blue-green
1	Blue	blue	ADJ	JJ	Degree=Pos	3	amod	_	SpaceAfter=No
2	-	-	PUNCT	HYPH	_	1	punct	_	SpaceAfter=No
3	green	green	ADJ	JJ	Degree=Pos	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

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**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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- ← previous: [Indicators: the red-cabbage rainbow, exam 1](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/17-indicators-the-red-cabbage-rainbow/e1/)
- next →: [Indicators: the red-cabbage rainbow, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/17-indicators-the-red-cabbage-rainbow/e3/)
- ↑ back to [Indicators: the red-cabbage rainbow](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/17-indicators-the-red-cabbage-rainbow/)