---
title: Identify the principal purpose of Coordinated Universal Time. — Time zones: why it's night in Sydney w… · tree and pragmatics
description: Identify the principal purpose of Coordinated Universal Time. Exam question 4 of lesson 120 «Time zones: why it's night in Sydney when it's day in London» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right
---

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# Exam question 4 · Time zones: why it's night in Sydney when it's day in London

<!-- .ven lang=en -->
Identify the principal purpose of Coordinated Universal Time.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** you, principal purpose · **What happens:** identify, coordinate · **To what, where:** principal purpose, Universal Time

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This is exam question 4 of lesson 120 «Time zones: why it's night in Sydney when it's day in London» of the world 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/world/120-time-zones/#e4).

## The question {#question}

```conllu
# sent_id = question:world:120-time-zones:e4:1
# text = Identify the principal purpose of Coordinated Universal Time.
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	purpose	purpose	NOUN	NN	Number=Sing	1	obj	_	_
5	of	of	SCONJ	IN	_	6	mark	_	_
6	Coordinated	coordinate	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	acl	_	_
7	Universal	Universal	PROPN	NNP	_	8	flat	_	_
8	Time	Time	PROPN	NNP	Number=Sing	6	obl:unmarked	_	SpaceAfter=No
9	.	.	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 purpose |  |  |  |  | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent purpose=Theme |
| 2 | **coordinate** | participle | the principal purpose *not said here* | Universal Time |  |  |  |  | tree rules |

<!-- .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 · ✓ the right answer {#o1}

<!-- .ven lang=en -->
To provide one standard time that prevents confusion between zones

```conllu
# sent_id = question:world:120-time-zones:e4:o1:1
# text = To provide one standard time that prevents confusion between zones
1	To	to	PART	TO	_	2	mark	_	_
2	provide	provide	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	one	one	NUM	CD	NumForm=Word|NumType=Card	5	nummod	_	_
4	standard	standard	ADJ	JJ	Degree=Pos	5	amod	_	_
5	time	time	NOUN	NN	Number=Sing	2	obj	_	_
6	that	that	PRON	WDT	PronType=Rel	7	nsubj	_	_
7	prevents	prevent	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	acl:relcl	_	_
8	confusion	confusion	NOUN	NN	Number=Sing	7	obj	_	_
9	between	between	ADP	IN	_	10	case	_	_
10	zones	zone	NOUN	NNS	Number=Plur	8	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **provide** | to-infinitive |  |  |  |  | time |  | vn ensure-99 «NP V that S»: agent=Precondition |
| 2 | **prevent** | present | one standard time | confusion |  |  |  | between zones | vn forbid-64.4-1 «NP V NP»: agent=Causer confusion=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
To replace all local clock times throughout the world with that of Washington

```conllu
# sent_id = question:world:120-time-zones:e4:o2:1
# text = To replace all local clock times throughout the world with that of Washington
1	To	to	PART	TO	_	2	mark	_	_
2	replace	replace	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	all	all	DET	DT	PronType=Tot	6	det	_	_
4	local	local	ADJ	JJ	Degree=Pos	6	amod	_	_
5	clock	clock	NOUN	NN	Number=Sing	6	compound	_	_
6	times	time	NOUN	NNS	Number=Plur	2	obl:unmarked	_	_
7	throughout	throughout	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	world	world	NOUN	NN	Number=Sing	2	obl	_	_
10	with	with	ADP	IN	_	11	case	_	_
11	that	that	PRON	DT	Number=Sing|PronType=Dem	2	obl	_	_
12	of	of	ADP	IN	_	13	case	_	_
13	Washington	Washington	PROPN	NNP	Number=Sing	11	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **replace** | to-infinitive |  |  |  |  | throughout the world; time | with that | vn substitute-13.6.2-1 «NP V NP PP.co-theme»: agent=Theme with that=Co-Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
To regulate the hours of sunrise and sunset in every country of the world

```conllu
# sent_id = question:world:120-time-zones:e4:o3:1
# text = To regulate the hours of sunrise and sunset in every country of the world
1	To	to	PART	TO	_	2	mark	_	_
2	regulate	regulate	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	hours	hour	NOUN	NNS	Number=Plur	2	obj	_	_
5	of	of	ADP	IN	_	6	case	_	_
6	sunrise	sunrise	NOUN	NN	Number=Sing	4	nmod	_	_
7	and	and	CCONJ	CC	_	8	cc	_	_
8	sunset	sunset	NOUN	NN	Number=Sing	6	conj	_	_
9	in	in	ADP	IN	_	11	case	_	_
10	every	every	DET	DT	PronType=Tot	11	det	_	_
11	country	country	NOUN	NN	Number=Sing	2	obl	_	_
12	of	of	ADP	IN	_	14	case	_	_
13	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
14	world	world	NOUN	NN	Number=Sing	11	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **regulate** | to-infinitive |  |  |  | every country of the world | hour |  | tree rules |

### Option 4 {#o4}

<!-- .ven lang=en -->
To determine the dates of the principal religious festivals each year

```conllu
# sent_id = question:world:120-time-zones:e4:o4:1
# text = To determine the dates of the principal religious festivals each year
1	To	to	PART	TO	_	2	mark	_	_
2	determine	determine	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	dates	date	NOUN	NNS	Number=Plur	2	obj	_	_
5	of	of	ADP	IN	_	9	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
7	principal	principal	ADJ	JJ	Degree=Pos	9	amod	_	_
8	religious	religious	ADJ	JJ	Degree=Pos	9	amod	_	_
9	festivals	festival	NOUN	NNS	Number=Plur	4	nmod	_	_
10	each	each	DET	DT	PronType=Tot	11	det	_	_
11	year	year	NOUN	NN	Number=Sing	2	obl:unmarked	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **determine** | to-infinitive |  | the dates of the principal religious festivals |  |  | year |  | vn discover-84 «NP V NP»: agent=Agent date=Topic |

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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: [Time zones: why it's night in Sydney w…, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/world/120-time-zones/e3/)
- next →: [The date line and summer time: clocks…, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/world/121-date-line-and-summer-time/t1/)
- ↑ back to [Time zones: why it's night in Sydney when it's day in London](https://md.mova.elamur.ai/free/en/corpora/questions/world/120-time-zones/)