---
title: Identify the principal reason for which a uniform national time was… — Time zones and the date line · tree and pragmatics
description: Identify the principal reason for which a uniform national time was adopted by the British railways. Exam question 3 of lesson 4 «Time zones and the date line» 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 3 · Time zones and the date line

<!-- .ven lang=en -->
Identify the principal reason for which a uniform national time was adopted by the British railways.

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 3 · right ✓ · **Who acts:** you, uniform, British railways · **What happens:** identify, time, adopt · **To what, where:** principal reason, national time

<!-- .vabout -->
This is exam question 3 of lesson 4 «Time zones and the date line» 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/4-time-zones-and-the-date-line/#e3).

## The question {#question}

```conllu
# sent_id = question:geography:4-time-zones-and-the-date-line:e3:1
# text = Identify the principal reason for which a uniform national time was adopted by the British railways.
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	reason	reason	NOUN	NN	Number=Sing	1	obj	_	_
5	for	for	ADP	IN	_	6	case	_	_
6	which	which	PRON	WDT	PronType=Rel	12	obl	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
8	uniform	uniform	NOUN	NN	Number=Sing	10	nsubj	_	_
9	national	national	ADJ	JJ	Degree=Pos	10	amod	_	_
10	time	time	NOUN	NN	Number=Sing	12	nsubj:pass	_	_
11	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	12	aux:pass	_	_
12	adopted	adopt	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	acl:relcl	_	_
13	by	by	ADP	IN	_	16	case	_	_
14	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
15	British	British	ADJ	JJ	Degree=Pos	16	amod	_	_
16	railways	railway	NOUN	NNS	Number=Plur	12	obl	_	SpaceAfter=No
17	.	.	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 reason |  |  |  |  | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent reason=Theme |
| 2 | **time** |  | uniform |  |  |  |  |  | tree rules |
| 3 | **adopt** | past · passive | the British railways | a national time |  |  |  | for the principal reason | vn appoint-29.1 «NP V NP»: agent=Agent subject=Theme |

<!-- .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 {#o1}

<!-- .ven lang=en -->
The Sun no longer kept regular time

```conllu
# sent_id = question:geography:4-time-zones-and-the-date-line:e3:o1:1
# text = The Sun no longer kept regular time
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	Sun	Sun	PROPN	NNP	Number=Sing	5	nsubj	_	_
3	no	no	ADV	RB	_	4	advmod	_	_
4	longer	long	ADV	RBR	Degree=Cmp	5	advmod	_	_
5	kept	keep	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
6	regular	regular	ADJ	JJ	Degree=Pos	7	amod	_	_
7	time	time	NOUN	NN	Number=Sing	5	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | past | the Sun |  |  |  | time | long *property* | vn keep-15.2 «NP V NP»: agent=Agent |

### Option 2 {#o2}

<!-- .ven lang=en -->
Local solar time had been abolished by Parliament

```conllu
# sent_id = question:geography:4-time-zones-and-the-date-line:e3:o2:1
# text = Local solar time had been abolished by Parliament
1	Local	local	ADJ	JJ	Degree=Pos	3	amod	_	_
2	solar	solar	ADJ	JJ	Degree=Pos	3	amod	_	_
3	time	time	NOUN	NN	Number=Sing	6	obl:unmarked	_	_
4	had	have	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	6	aux	_	_
5	been	be	AUX	VBN	Tense=Past|VerbForm=Part	6	aux:pass	_	_
6	abolished	abolish	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
7	by	by	ADP	IN	_	8	case	_	_
8	Parliament	Parliament	PROPN	NNP	Number=Sing	6	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **abolish** | past · perfect · passive | Parliament |  |  |  | time |  | vn remove-10.1 «NP V NP»: agent=Agent |

### Option 3 · ← Mova's choice · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Railway timetables required a single common time

```conllu
# sent_id = question:geography:4-time-zones-and-the-date-line:e3:o3:1
# text = Railway timetables required a single common time
1	Railway	railway	NOUN	NN	Number=Sing	2	compound	_	_
2	timetables	timetable	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	required	require	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
5	single	single	ADJ	JJ	Degree=Pos	7	amod	_	_
6	common	common	ADJ	JJ	Degree=Pos	7	amod	_	_
7	time	time	NOUN	NN	Number=Sing	3	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **require** | past | Railway timetables |  |  |  | time |  | vn require-103-1 «NP V NP S\_INF»: agent=Theme |

### Option 4 {#o4}

<!-- .ven lang=en -->
Ships required it for navigation

```conllu
# sent_id = question:geography:4-time-zones-and-the-date-line:e3:o4:1
# text = Ships required it for navigation
1	Ships	ship	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	required	require	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
3	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	obj	_	_
4	for	for	ADP	IN	_	5	case	_	_
5	navigation	navigation	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **require** | past | Ships | it |  |  |  | for navigation | vn require-103-1 «NP V NP»: agent=Theme it=Precondition |

<!-- div src -->

**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: [Time zones and the date line, exam 2](https://md.mova.elamur.ai/free/en/corpora/questions/geography/4-time-zones-and-the-date-line/e2/)
- next →: [Time zones and the date line, exam 4](https://md.mova.elamur.ai/free/en/corpora/questions/geography/4-time-zones-and-the-date-line/e4/)
- ↑ back to [Time zones and the date line](https://md.mova.elamur.ai/free/en/corpora/questions/geography/4-time-zones-and-the-date-line/)

