---
title: Identify the principal reason for which the date of Easter changes e… — Festivals, holidays and traditions in… · tree and pragmatics
description: Identify the principal reason for which the date of Easter changes each year. Exam question 2 of lesson 97 «Festivals, holidays and traditions in the English-speaking world» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova
---

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# Exam question 2 · Festivals, holidays and traditions in the English-speaking…

<!-- .ven lang=en -->
Identify the principal reason for which the date of Easter changes each year.

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 2 · right ✓ · **Who acts:** you, date · **What happens:** identify, change · **To what, where:** principal reason

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This is exam question 2 of lesson 97 «Festivals, holidays and traditions in the English-speaking world» 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/97-festivals-holidays-traditions/#e2).

## The question {#question}

```conllu
# sent_id = question:world:97-festivals-holidays-traditions:e2:1
# text = Identify the principal reason for which the date of Easter changes each year.
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	11	obl	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	date	date	NOUN	NN	Number=Sing	11	nsubj	_	_
9	of	of	ADP	IN	_	10	case	_	_
10	Easter	Easter	PROPN	NNP	Number=Sing	8	nmod	_	_
11	changes	change	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	acl	_	_
12	each	each	DET	DT	PronType=Tot	13	det	_	_
13	year	year	NOUN	NN	Number=Sing	11	obl:unmarked	_	SpaceAfter=No
14	.	.	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 | **change** | present | the date of Easter |  |  |  | year | for the principal reason | vn dress-41.1.1-1-1 «NP V»: agent=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 {#o1}

<!-- .ven lang=en -->
It follows the harvest of wheat

```conllu
# sent_id = question:world:97-festivals-holidays-traditions:e2:o1:1
# text = It follows the harvest of wheat
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	follows	follow	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	harvest	harvest	NOUN	NN	Number=Sing	2	obj	_	_
5	of	of	ADP	IN	_	6	case	_	_
6	wheat	wheat	NOUN	NN	Number=Sing	4	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **follow** | present | It | the harvest of wheat |  |  |  |  | vn chase-51.6 «NP V NP»: agent=Agent harvest=Theme |

### Option 2 · ← Mova's choice · ✓ the right answer {#o2}

<!-- .ven lang=en -->
It follows the Moon

```conllu
# sent_id = question:world:97-festivals-holidays-traditions:e2:o2:1
# text = It follows the Moon
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	follows	follow	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	Moon	Moon	PROPN	NNP	Number=Sing	2	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **follow** | present | It | the Moon |  |  |  |  | vn chase-51.6 «NP V NP»: agent=Agent moon=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
It follows the Sun's eclipses

```conllu
# sent_id = question:world:97-festivals-holidays-traditions:e2:o3:1
# text = It follows the Sun's eclipses
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	follows	follow	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	Sun	Sun	PROPN	NNP	Number=Sing	6	nmod:poss	_	SpaceAfter=No
5	's	's	PART	POS	_	4	case	_	_
6	eclipses	eclipse	NOUN	NNS	Number=Plur	2	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **follow** | present | It | the Sun's eclipses |  |  |  |  | vn chase-51.6 «NP V NP»: agent=Agent eclipse=Theme |
| 2 | **eclipse** |  | the Sun |  |  |  |  |  | nom eclipse «event transitive»: poss=agent |

### Option 4 {#o4}

<!-- .ven lang=en -->
It is chosen by vote each year

```conllu
# sent_id = question:world:97-festivals-holidays-traditions:e2:o4:1
# text = It is chosen by vote each year
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	chosen	choose	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	by	by	ADP	IN	_	5	case	_	_
5	vote	vote	NOUN	NN	Number=Sing	3	obl	_	_
6	each	each	DET	DT	PronType=Tot	7	det	_	_
7	year	year	NOUN	NN	Number=Sing	3	obl:unmarked	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **choose** | present · passive | vote | It |  |  | year |  | vn get-13.5.1 «NP V NP»: agent=Agent subject=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.

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