---
title: Identify the principal factor determining the dimensions of the crys… — Igneous rocks and the rock cycle · tree and pragmatics
description: Identify the principal factor determining the dimensions of the crystals within an igneous rock. Exam question 2 of lesson 48 «Igneous rocks and the rock cycle» of the geography course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice
---

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# Exam question 2 · Igneous rocks and the rock cycle

<!-- .ven lang=en -->
Identify the principal factor determining the dimensions of the crystals within an igneous rock.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** you, principal factor · **What happens:** identify, determine · **To what, where:** principal factor, dimensions

<!-- .vabout -->
This is exam question 2 of lesson 48 «Igneous rocks and the rock cycle» of the geography 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/geography/48-igneous-rocks-and-the-rock-cycle/#e2).

## The question {#question}

```conllu
# sent_id = question:geography:48-igneous-rocks-and-the-rock-cycle:e2:1
# text = Identify the principal factor determining the dimensions of the crystals within an igneous rock.
1	Identify	identify	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	principal	principal	ADJ	JJ	Degree=Pos	4	amod	_	_
4	factor	factor	NOUN	NN	Number=Sing	1	obj	_	_
5	determining	determine	VERB	VBG	VerbForm=Ger	4	acl	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	dimensions	dimension	NOUN	NNS	Number=Plur	5	obj	_	_
8	of	of	ADP	IN	_	10	case	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	crystals	crystal	NOUN	NNS	Number=Plur	7	nmod	_	_
11	within	within	ADP	IN	_	14	case	_	_
12	an	a	DET	DT	Definite=Ind|PronType=Art	14	det	_	_
13	igneous	igneous	ADJ	JJ	Degree=Pos	14	amod	_	_
14	rock	rock	NOUN	NN	Number=Sing	5	obl	_	SpaceAfter=No
15	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **identify** | imperative | you *not said here* | the principal factor |  |  |  |  | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent factor=Theme |
| 2 | **determine** | gerund | the principal factor *not said here* | the dimensions of the crystals |  |  |  | within a igneous rock | vn discover-84 «NP V NP»: agent=Agent dimension=Topic |

<!-- .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.

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
The colour of the molten rock prior to cooling

```conllu
# sent_id = question:geography:48-igneous-rocks-and-the-rock-cycle:e2:o1:1
# text = The colour of the molten rock prior to cooling
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	colour	colour	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	6	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
5	molten	molten	ADJ	JJ	Degree=Pos	6	amod	_	_
6	rock	rock	NOUN	NN	Number=Sing	2	nmod	_	_
7	prior	prior	ADJ	JJ	Degree=Pos|ExtPos=ADP	9	case	_	_
8	to	to	ADP	IN	_	7	fixed	_	_
9	cooling	cooling	NOUN	NN	Number=Sing	2	nmod	_	_
```

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

### Option 2 {#o2}

<!-- .ven lang=en -->
The age of the surrounding sedimentary strata

```conllu
# sent_id = question:geography:48-igneous-rocks-and-the-rock-cycle:e2:o2:1
# text = The age of the surrounding sedimentary strata
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	age	age	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	7	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
5	surrounding	surround	VERB	VBG	VerbForm=Ger	7	amod	_	_
6	sedimentary	sedimentary	ADJ	JJ	Degree=Pos	7	amod	_	_
7	strata	strata	NOUN	NN	Number=Sing	2	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **surround** | gerund |  |  |  |  |  |  | vn contiguous\_location-47.8 «NP V NP»: agent=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
The quantity of sunlight received by the rock

```conllu
# sent_id = question:geography:48-igneous-rocks-and-the-rock-cycle:e2:o3:1
# text = The quantity of sunlight received by the rock
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	quantity	quantity	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	sunlight	sunlight	NOUN	NN	Number=Sing	2	nmod	_	_
5	received	receive	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	2	acl	_	_
6	by	by	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	rock	rock	NOUN	NN	Number=Sing	5	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **receive** | participle |  | the quantity of sunlight *not said here* |  |  |  | by the rock | vn admit-64.3-1 «NP V NP PP.location»: agent=Agent by rock=Location |

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

<!-- .ven lang=en -->
The rate at which the molten rock cooled

```conllu
# sent_id = question:geography:48-igneous-rocks-and-the-rock-cycle:e2:o4:1
# text = The rate at which the molten rock cooled
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	rate	rate	NOUN	NN	Number=Sing	0	root	_	_
3	at	at	ADP	IN	_	7	case	_	_
4	which	which	PRON	WDT	PronType=Rel	7	nsubj	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	molten	molten	ADJ	JJ	Degree=Pos	7	amod	_	_
7	rock	rock	NOUN	NN	Number=Sing	2	nmod	_	_
8	cooled	cool	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	7	acl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **cool** | participle |  | the molten rock *not said here* |  |  |  |  | vn other\_cos-45.4 «NP.patient V»: agent=Patient |

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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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