---
title: 2028 has a 29 February. Why don't we just have 365 days every year? — The Earth as a planet · tree and pragmatics
description: 2028 has a 29 February. Why don't we just have 365 days every year? Test 11 of lesson 5 «The Earth as a planet» of the space 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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# Test 11 · The Earth as a planet

<!-- .ven lang=en -->
2028 has a 29 February. Why don't we just have 365 days every year?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** 2028, we · **What happens:** have, not have

<!-- .vabout -->
This is test 11 of lesson 5 «The Earth as a planet» of the space course of Mova's primary school. 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/space/5-the-earth-as-a-planet/#t11).

## The question {#question}

<!-- .note -->
*Sentence 1:* 2028 has a 29 February.

```conllu
# sent_id = question:space:5-the-earth-as-a-planet:t11:1
# text = 2028 has a 29 February.
1	2028	2028	PROPN	NNP	Number=Sing	2	nsubj	_	_
2	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
4	29	29	NUM	CD	NumForm=Digit|NumType=Card	5	nummod	_	_
5	February	February	PROPN	NNP	Number=Sing	2	obj	_	SpaceAfter=No
6	.	.	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | 2028 |  |  |  | february |  | vn birth-28.2-1 «NP V NP»: 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.

<!-- .note -->
*Sentence 2:* Why don't we just have 365 days every year?

```conllu
# sent_id = question:space:5-the-earth-as-a-planet:t11:2
# text = Why don't we just have 365 days every year?
1	Why	why	ADV	WRB	PronType=Int	0	root	_	_
2	do	do	AUX	VBP	Mood=Ind|Number=Plur|Person=1|Tense=Pres|VerbForm=Fin	6	aux	_	SpaceAfter=No
3	n't	not	PART	RB	Polarity=Neg	6	advmod	_	_
4	we	we	PRON	PRP	Case=Nom|Number=Plur|Person=1|PronType=Prs	6	nsubj	_	_
5	just	just	ADV	RB	_	6	advmod	_	_
6	have	have	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	1	advcl:relcl	_	_
7	365	365	NUM	CD	NumForm=Digit|NumType=Card	8	nummod	_	_
8	days	day	NOUN	NNS	Number=Plur	6	obj	_	_
9	every	every	DET	DT	PronType=Tot	10	det	_	_
10	year	year	NOUN	NN	Number=Sing	6	obl:unmarked	_	SpaceAfter=No
11	?	?	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **have** | present · do-support | we |  |  |  | day; year |  | vn birth-28.2-1 «NP V NP»: agent=Agent |

## The options {#options}

### Option 1 · ← Mova's choice · ✓ the right answer {#o1}

<!-- .ven lang=en -->
The Earth takes about 365 and a quarter days to orbit, so the extra quarters add up

<!-- fold The tree, 17 words -->
```conllu
# sent_id = question:space:5-the-earth-as-a-planet:t11:o1:1
# text = The Earth takes about 365 and a quarter days to orbit, so the extra quarters add up
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	Earth	Earth	PROPN	NNP	Number=Sing	3	nsubj	_	_
3	takes	take	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	about	about	ADV	RB	_	5	advmod	_	_
5	365	365	NUM	CD	NumForm=Digit|NumType=Card	9	nummod	_	_
6	and	and	CCONJ	CC	_	8	cc	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	quarter	quarter	NOUN	NN	Number=Sing	5	conj	_	_
9	days	day	NOUN	NNS	Number=Plur	3	obj	_	_
10	to	to	PART	TO	_	11	mark	_	_
11	orbit	orbit	VERB	VB	VerbForm=Inf	3	advcl	_	SpaceAfter=No
12	,	,	PUNCT	,	_	17	punct	_	_
13	so	so	ADV	RB	_	17	advmod	_	_
14	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
15	extra	extra	ADJ	JJ	Degree=Pos	16	amod	_	_
16	quarters	quarter	NOUN	NNS	Number=Plur	17	nsubj	_	_
17	add	add	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	conj	_	_
18	up	up	ADP	RP	_	17	compound:prt	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **take** | present | the Earth |  |  |  | day |  | vn bring-11.3 «NP V NP»: agent=Agent |
| 2 | **orbit** | to-infinitive | the Earth *not said here* |  |  |  |  |  | vn orbit-51.9.2 «NP V PP.location»: agent=Theme |
| 3 | **add up** *speech: assert* | present | the extra quarters |  |  |  |  |  | vn mix-22.1-2 «NP V ADVP-Middle»: agent=Patient |

### Option 2 {#o2}

<!-- .ven lang=en -->
29 February is a holiday that was added for fun

```conllu
# sent_id = question:space:5-the-earth-as-a-planet:t11:o2:1
# text = 29 February is a holiday that was added for fun
1	29	29	NUM	CD	NumForm=Digit|NumType=Card	2	nummod	_	_
2	February	February	PROPN	NNP	Number=Sing	5	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	holiday	holiday	NOUN	NN	Number=Sing	0	root	_	_
6	that	that	PRON	WDT	PronType=Rel	8	nsubj:pass	_	_
7	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	8	aux:pass	_	_
8	added	add	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	acl:relcl	_	_
9	for	for	ADP	IN	_	10	case	_	_
10	fun	fun	NOUN	NN	Number=Sing	8	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | 29 February | a holiday |  |  |  |  | tree rules |
| 2 | **add** *speech: assert* | past · passive |  | a holiday |  |  |  | for fun | vn mix-22.1-2 «NP V NP»: subject=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
The Moon's phases need an extra day

```conllu
# sent_id = question:space:5-the-earth-as-a-planet:t11:o3:1
# text = The Moon's phases need an extra day
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	Moon	Moon	PROPN	NNP	Number=Sing	4	nmod:poss	_	SpaceAfter=No
3	's	's	PART	POS	_	2	case	_	_
4	phases	phase	NOUN	NNS	Number=Plur	5	nsubj	_	_
5	need	need	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	an	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
7	extra	extra	ADJ	JJ	Degree=Pos	8	amod	_	_
8	day	day	NOUN	NN	Number=Sing	5	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **need** | present | the Moon's phases |  |  |  | day |  | vn want-32.1-1-1 «NP V NP S\_INF»: agent=Pivot |

### Option 4 {#o4}

<!-- .ven lang=en -->
Leap days stop the Earth from tilting

```conllu
# sent_id = question:space:5-the-earth-as-a-planet:t11:o4:1
# text = Leap days stop the Earth from tilting
1	Leap	leap	NOUN	NN	Number=Sing	2	compound	_	_
2	days	day	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	stop	stop	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	Earth	Earth	PROPN	NNP	Number=Sing	3	obj	_	_
6	from	from	ADP	IN	_	7	case	_	_
7	tilting	tilting	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **stop** | present | Leap days |  | the Earth | tilting |  |  | vn forbid-64.4-1 «NP V NP PP.theme»: agent=Causer earth=Beneficiary from tilting=Eventuality |

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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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