---
title: Identify the principal function of egg yolk in the preparation of ma… — Oil and water, and things that won't mix · tree and pragmatics
description: Identify the principal function of egg yolk in the preparation of mayonnaise. Exam question 2 of lesson 7 «Oil and water, and things that won't mix» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Exam question 2 · Oil and water, and things that won't mix

<!-- .ven lang=en -->
Identify the principal function of egg yolk in the preparation of mayonnaise.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** you · **What happens:** identify, prepare · **To what, where:** principal function, preparation, mayonnaise

<!-- .vabout -->
This is exam question 2 of lesson 7 «Oil and water, and things that won't mix» 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/7-oil-and-water/#e2).

## The question {#question}

```conllu
# sent_id = question:chemistry:7-oil-and-water:e2:1
# text = Identify the principal function of egg yolk in the preparation of mayonnaise.
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	function	function	NOUN	NN	Number=Sing	1	obj	_	_
5	of	of	ADP	IN	_	7	case	_	_
6	egg	egg	NOUN	NN	Number=Sing	7	compound	_	_
7	yolk	yolk	NOUN	NN	Number=Sing	4	nmod	_	_
8	in	in	ADP	IN	_	10	case	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	preparation	preparation	NOUN	NN	Number=Sing	1	obl	_	_
11	of	of	ADP	IN	_	12	case	_	_
12	mayonnaise	mayonnaise	NOUN	NN	Number=Sing	10	nmod	_	SpaceAfter=No
13	.	.	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 function of egg yolk |  | the preparation of mayonnaise |  |  | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent function=Theme |
| 2 | **prepare** |  |  | mayonnaise |  |  |  |  | nom preparation «act transitive»: of=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.

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
It supplies the greater part of the oil of which mayonnaise consists

```conllu
# sent_id = question:chemistry:7-oil-and-water:e2:o1:1
# text = It supplies the greater part of the oil of which mayonnaise consists
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	supplies	supply	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	greater	great	ADJ	JJR	Degree=Cmp	5	amod	_	_
5	part	part	NOUN	NN	Number=Sing	12	nsubj	_	_
6	of	of	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	oil	oil	NOUN	NN	Number=Sing	5	nmod	_	_
9	of	of	ADP	IN	_	11	case	_	_
10	which	which	DET	WDT	PronType=Int	11	det	_	_
11	mayonnaise	mayonnaise	NOUN	NN	Number=Sing	8	nmod	_	_
12	consists	consist	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **supply** | present | It |  |  |  |  |  | vn fulfilling-13.4.1-1 «NP V NP»: agent=Agent |
| 2 | **consist** | present | the greater part of the oil of which mayonnaise |  |  |  |  |  | tree rules |

### Option 2 {#o2}

<!-- .ven lang=en -->
It solidifies the oil by cooling

```conllu
# sent_id = question:chemistry:7-oil-and-water:e2:o2:1
# text = It solidifies the oil by cooling
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	solidifies	solidify	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	oil	oil	NOUN	NN	Number=Sing	2	obj	_	_
5	by	by	ADP	IN	_	6	case	_	_
6	cooling	cooling	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **solidify** | present | It | the oil |  |  |  | by cooling | vn other\_cos-45.4 «NP V NP.patient»: agent=Agent oil=Patient |

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Its molecules maintain the separation of minute droplets of oil

```conllu
# sent_id = question:chemistry:7-oil-and-water:e2:o3:1
# text = Its molecules maintain the separation of minute droplets of oil
1	Its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	2	nmod:poss	_	_
2	molecules	molecule	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	maintain	maintain	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	separation	separation	NOUN	NN	Number=Sing	3	obj	_	_
6	of	of	ADP	IN	_	8	case	_	_
7	minute	minute	NOUN	NN	Number=Sing	8	compound	_	_
8	droplets	droplet	NOUN	NNS	Number=Plur	5	nmod	_	_
9	of	of	ADP	IN	_	10	case	_	_
10	oil	oil	NOUN	NN	Number=Sing	8	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **maintain** | present | Its molecules | the separation of minute droplets of oil |  |  |  |  | vn declare-29.4-1 «NP V NP ADJ»: agent=Agent separation=Theme |
| 2 | **separate** |  | minute droplets of oil |  |  |  |  |  | nom separation «state intransitive»: of=agent |

### Option 4 {#o4}

<!-- .ven lang=en -->
It renders the oil wholly soluble in water

```conllu
# sent_id = question:chemistry:7-oil-and-water:e2:o4:1
# text = It renders the oil wholly soluble in water
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	renders	render	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	oil	oil	NOUN	NN	Number=Sing	2	obj	_	_
5	wholly	wholly	ADV	RB	_	6	advmod	_	_
6	soluble	soluble	ADJ	JJ	Degree=Pos	4	amod	_	_
7	in	in	ADP	IN	_	8	case	_	_
8	water	water	NOUN	NN	Number=Sing	6	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **render** | present | It | the oil |  |  |  |  | vn give-13.1 «NP V NP»: agent=Agent oil=Theme |

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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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- ← previous: [Oil and water, and things that won't mix, exam 1](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/7-oil-and-water/e1/)
- next →: [Oil and water, and things that won't mix, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/7-oil-and-water/e3/)
- ↑ back to [Oil and water, and things that won't mix](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/7-oil-and-water/)