---
title: It is given that William Perkin, in 1856, produced a purple dye. Sel… — Dyes, inks and colouring · tree and pragmatics
description: It is given that William Perkin, in 1856, produced a purple dye. Select the statement consistent with the established facts. Exam question 3 of lesson 27 «Dyes, inks and colouring» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and of each o
---

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# Exam question 3 · Dyes, inks and colouring

<!-- .ven lang=en -->
It is given that William Perkin, in 1856, produced a purple dye. Select the statement consistent with the established facts.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** William Perkin, you · **What happens:** give, produce, select, establish · **To what, where:** It, purple dye, statement

<!-- .vabout -->
This is exam question 3 of lesson 27 «Dyes, inks and colouring» 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/27-dyes-inks-colouring/#e3).

## The question {#question}

<!-- .note -->
*Sentence 1:* It is given that William Perkin, in 1856, produced a purple dye.

```conllu
# sent_id = question:chemistry:27-dyes-inks-colouring:e3:1
# text = It is given that William Perkin, in 1856, produced a purple dye.
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	_	11	mark	_	_
5	William	William	PROPN	NNP	Number=Sing	6	compound	_	_
6	Perkin	Perkin	PROPN	NNP	Number=Sing	11	nsubj	_	SpaceAfter=No
7	,	,	PUNCT	,	_	9	punct	_	_
8	in	in	ADP	IN	_	9	case	_	_
9	1856	1856	NUM	CD	NumForm=Digit|NumType=Card	6	appos	_	SpaceAfter=No
10	,	,	PUNCT	,	_	6	punct	_	_
11	produced	produce	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	3	advcl	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	14	det	_	_
13	purple	purple	ADJ	JJ	Degree=Pos	14	amod	_	_
14	dye	dye	NOUN	NN	Number=Sing	11	obj	_	SpaceAfter=No
15	.	.	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 | **produce** | past | William Perkin | a purple dye |  |  |  |  | vn create-26.4 «NP V NP»: agent=Agent dye=Result |

<!-- .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:* Select the statement consistent with the established facts.

```conllu
# sent_id = question:chemistry:27-dyes-inks-colouring:e3:2
# text = Select the statement consistent with the established facts.
1	Select	select	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	statement	statement	NOUN	NN	Number=Sing	1	obj	_	_
4	consistent	consistent	ADJ	JJ	Degree=Pos	1	xcomp	_	_
5	with	with	ADP	IN	_	8	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
7	established	establish	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	8	amod	_	_
8	facts	fact	NOUN	NNS	Number=Plur	4	obl	_	SpaceAfter=No
9	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **select** | imperative | you *not said here* | the statement |  |  |  | consistent *property* | vn obtain-13.5.2 «NP V NP»: agent=Agent statement=Theme |
| 2 | **establish** | participle |  |  |  |  |  |  | vn indicate-78-1-1 «NP V NP to be NP»: agent=Pivot |

## The options {#options}

### Option 1 · ← Mova's choice · ✓ the right answer {#o1}

<!-- .ven lang=en -->
The discovery was accidental, during an attempt to make a medicine

```conllu
# sent_id = question:chemistry:27-dyes-inks-colouring:e3:o1:1
# text = The discovery was accidental, during an attempt to make a medicine
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	discovery	discovery	NOUN	NN	Number=Sing	4	nsubj	_	_
3	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	4	cop	_	_
4	accidental	accidental	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
5	,	,	PUNCT	,	_	8	punct	_	_
6	during	during	ADP	IN	_	8	case	_	_
7	an	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	attempt	attempt	NOUN	NN	Number=Sing	4	obl	_	_
9	to	to	PART	TO	_	10	mark	_	_
10	make	make	VERB	VB	VerbForm=Inf	8	acl	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
12	medicine	medicine	NOUN	NN	Number=Sing	10	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | past | the discovery |  |  |  | during a attempt | accidental *property* | tree rules |
| 2 | **make** | to-infinitive | the discovery *not said here* | a medicine |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset medicine=Product |

### Option 2 {#o2}

<!-- .ven lang=en -->
The dye was obtained from onion skins

```conllu
# sent_id = question:chemistry:27-dyes-inks-colouring:e3:o2:1
# text = The dye was obtained from onion skins
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	dye	dye	NOUN	NN	Number=Sing	4	nsubj:pass	_	_
3	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	4	aux:pass	_	_
4	obtained	obtain	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	from	from	ADP	IN	_	7	case	_	_
6	onion	onion	NOUN	NN	Number=Sing	7	compound	_	_
7	skins	skin	NOUN	NNS	Number=Plur	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **obtain** | past · passive |  | the dye |  | onion skins |  |  | vn obtain-13.5.2-1 «NP V NP PP.source»: subject=Theme from skin=Source |

### Option 3 {#o3}

<!-- .ven lang=en -->
The dye was extracted from sea snails

```conllu
# sent_id = question:chemistry:27-dyes-inks-colouring:e3:o3:1
# text = The dye was extracted from sea snails
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	dye	dye	NOUN	NN	Number=Sing	4	nsubj:pass	_	_
3	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	4	aux:pass	_	_
4	extracted	extract	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	from	from	ADP	IN	_	7	case	_	_
6	sea	sea	NOUN	NN	Number=Sing	7	compound	_	_
7	snails	snail	NOUN	NNS	Number=Plur	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **extract** | past · passive |  | the dye |  |  |  | from sea snails | vn remove-10.1 «NP V NP PP»: subject=Theme from snail=Initial\_Location |

### Option 4 {#o4}

<!-- .ven lang=en -->
The discovery was made at an advanced age

```conllu
# sent_id = question:chemistry:27-dyes-inks-colouring:e3:o4:1
# text = The discovery was made at an advanced age
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	discovery	discovery	NOUN	NN	Number=Sing	4	nsubj	_	_
3	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	4	aux:pass	_	_
4	made	make	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	at	at	ADP	IN	_	8	case	_	_
6	an	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
7	advanced	advanced	ADJ	JJ	Degree=Pos	8	amod	_	_
8	age	age	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | past · passive |  | the discovery |  |  | at a advanced age |  | vn build-26.1-1 «NP.asset V NP»: subject=Product |

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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.

<!-- /div -->

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