---
title: Ascertain the angular rotation of the Earth, expressed in degrees of… — Time zones and the date line · tree and pragmatics
description: Ascertain the angular rotation of the Earth, expressed in degrees of longitude, accomplished in the course of one hour. Exam question 1 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 opt
---

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# Exam question 1 · Time zones and the date line

<!-- .ven lang=en -->
Ascertain the angular rotation of the Earth, expressed in degrees of longitude, accomplished in the course of one hour.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** you, Earth · **What happens:** ascertain, express, accomplish, rotate · **To what, where:** angular rotation, degrees, course

<!-- .vabout -->
This is exam question 1 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/#e1).

## The question {#question}

```conllu
# sent_id = question:geography:4-time-zones-and-the-date-line:e1:1
# text = Ascertain the angular rotation of the Earth, expressed in degrees of longitude, accomplished in the course of one hour.
1	Ascertain	ascertain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	angular	angular	ADJ	JJ	Degree=Pos	4	amod	_	_
4	rotation	rotation	NOUN	NN	Number=Sing	1	obj	_	_
5	of	of	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	Earth	Earth	PROPN	NNP	Number=Sing	4	nmod	_	SpaceAfter=No
8	,	,	PUNCT	,	_	9	punct	_	_
9	expressed	express	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	acl	_	_
10	in	in	ADP	IN	_	11	case	_	_
11	degrees	degree	NOUN	NNS	Number=Plur	9	obl	_	_
12	of	of	ADP	IN	_	13	case	_	_
13	longitude	longitude	NOUN	NN	Number=Sing	11	nmod	_	SpaceAfter=No
14	,	,	PUNCT	,	_	15	punct	_	_
15	accomplished	accomplish	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	11	acl	_	_
16	in	in	ADP	IN	_	18	case	_	_
17	the	the	DET	DT	Definite=Def|PronType=Art	18	det	_	_
18	course	course	NOUN	NN	Number=Sing	15	obl	_	_
19	of	of	ADP	IN	_	21	case	_	_
20	one	one	NUM	CD	NumForm=Word|NumType=Card	21	nummod	_	_
21	hour	hour	NOUN	NN	Number=Sing	18	nmod	_	SpaceAfter=No
22	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ascertain** | imperative | you *not said here* | the angular rotation of the Earth |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent rotation=Topic |
| 2 | **express** | participle |  | the angular rotation of the Earth *not said here* |  | degrees of longitude |  |  | vn reflexive\_appearance-48.1.2 «NP V NP»: agent=Agent |
| 3 | **accomplish** | participle |  | degrees of longitude *not said here* |  | the course of one hour |  |  | vn complete-55.2 «NP V S\_ING»: agent=Agent |
| 4 | **rotate** |  | the Earth |  |  |  |  |  | nom rotation «act intransitive»: of=agent |

<!-- .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 -->
Thirty degrees of longitude

```conllu
# sent_id = question:geography:4-time-zones-and-the-date-line:e1:o1:1
# text = Thirty degrees of longitude
1	Thirty	thirty	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	degrees	degree	NOUN	NNS	Number=Plur	0	root	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	longitude	longitude	NOUN	NN	Number=Sing	2	nmod	_	_
```

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

### Option 2 {#o2}

<!-- .ven lang=en -->
Twenty-four degrees

```conllu
# sent_id = question:geography:4-time-zones-and-the-date-line:e1:o2:1
# text = Twenty-four degrees
1	Twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	3	compound	_	SpaceAfter=No
2	-	-	PUNCT	HYPH	_	1	punct	_	SpaceAfter=No
3	four	four	NUM	CD	NumForm=Word|NumType=Card	4	nummod	_	_
4	degrees	degree	NOUN	NNS	Number=Plur	0	root	_	_
```

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

### Option 3 {#o3}

<!-- .ven lang=en -->
One degree of longitude

```conllu
# sent_id = question:geography:4-time-zones-and-the-date-line:e1:o3:1
# text = One degree of longitude
1	One	one	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	degree	degree	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	longitude	longitude	NOUN	NN	Number=Sing	2	nmod	_	_
```

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

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

<!-- .ven lang=en -->
Fifteen degrees

```conllu
# sent_id = question:geography:4-time-zones-and-the-date-line:e1:o4:1
# text = Fifteen degrees
1	Fifteen	fifteen	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	degrees	degree	NOUN	NNS	Number=Plur	0	root	_	_
```

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

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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 and the date line, test 11](https://md.mova.elamur.ai/free/en/corpora/questions/geography/4-time-zones-and-the-date-line/t11/)
- next →: [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/)
- ↑ 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/)