---
title: «desert at night, why's it freezing, we're in the Sahara ffs» Which… — The desert: living with little water · tree and pragmatics
description: «desert at night, why's it freezing, we're in the Sahara ffs» Which is the best answer? Test 6 · ★ of lesson 5 «The desert: living with little water» of the biology 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 6 · ★ · The desert: living with little water

<!-- .ven lang=en -->
«desert at night, why's it freezing, we're in the Sahara ffs» Which is the best answer?

<!-- .vintro -->
**Mova's choice:** option 4 · **The right answer:** option 4 · right ✓ · **Who acts:** desert, we · **What happens:** freeze, be · **To what, where:** Sahara ffs, best answer · **Speech:** someone speaks here

<!-- .vabout -->
This is test 6 · ★ of lesson 5 «The desert: living with little water» of the biology 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/biology/5-the-desert/#t6).

## The question {#question}

```conllu
# sent_id = question:biology:5-the-desert:t6:1
# text = «desert at night, why's it freezing, we're in the Sahara ffs» Which is the best answer?
1	«	«	PUNCT	``	_	2	punct	_	SpaceAfter=No
2	desert	desert	NOUN	NN	Number=Sing	22	nsubj	_	_
3	at	at	ADP	IN	_	4	case	_	_
4	night	night	NOUN	NN	Number=Sing	2	nmod	_	SpaceAfter=No
5	,	,	PUNCT	,	_	9	punct	_	_
6	why	why	ADV	WRB	PronType=Int	9	advmod	_	SpaceAfter=No
7	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	aux	_	_
8	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	9	nsubj	_	_
9	freezing	freeze	VERB	VBG	Tense=Pres|VerbForm=Part	2	conj	_	SpaceAfter=No
10	,	,	PUNCT	,	_	16	punct	_	_
11	we	we	PRON	PRP	Case=Nom|Number=Plur|Person=1|PronType=Prs	16	nsubj	_	SpaceAfter=No
12	're	be	AUX	VBP	Mood=Ind|Number=Plur|Person=1|Tense=Pres|VerbForm=Fin	16	cop	_	_
13	in	in	ADP	IN	_	16	case	_	_
14	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
15	Sahara	Sahara	PROPN	NNP	Number=Sing	16	compound	_	_
16	ffs	ff	NOUN	NNS	Number=Plur	2	appos	_	SpaceAfter=No
17	»	»	PUNCT	''	_	16	punct	_	_
18	Which	which	PRON	WDT	PronType=Rel	22	nsubj	_	_
19	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	22	cop	_	_
20	the	the	DET	DT	Definite=Def|PronType=Art	22	det	_	_
21	best	good	ADJ	JJS	Degree=Sup	22	amod	_	_
22	answer	answer	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
23	?	?	PUNCT	.	_	22	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **freeze** *in a quote* | present · progressive | desert |  |  |  |  |  | vn other\_cos-45.4-1 «NP.patient V»: agent=Patient |
| 2 | **is** *in a quote* | present | we |  |  | the Sahara ffs |  |  | tree rules |
| 3 | **be** *speech: assert* | present |  | the best answer |  |  |  |  | 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 {#o1}

<!-- .ven lang=en -->
Desert sand makes ice at night

```conllu
# sent_id = question:biology:5-the-desert:t6:o1:1
# text = Desert sand makes ice at night
1	Desert	desert	NOUN	NN	Number=Sing	2	compound	_	_
2	sand	sand	NOUN	NN	Number=Sing	3	nsubj	_	_
3	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	ice	ice	NOUN	NN	Number=Sing	3	obj	_	_
5	at	at	ADP	IN	_	6	case	_	_
6	night	night	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | Desert sand | ice |  |  | night |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset ice=Product |

### Option 2 {#o2}

<!-- .ven lang=en -->
The Sahara has winter every night

```conllu
# sent_id = question:biology:5-the-desert:t6:o2:1
# text = The Sahara has winter every night
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	Sahara	Sahara	PROPN	NNP	Number=Sing	3	nsubj	_	_
3	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	winter	winter	NOUN	NN	Number=Sing	3	obj	_	_
5	every	every	DET	DT	PronType=Tot	6	det	_	_
6	night	night	NOUN	NN	Number=Sing	3	obl:unmarked	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | the Sahara |  |  |  | night; winter |  | vn birth-28.2-1 «NP V NP»: agent=Agent |

### Option 3 {#o3}

<!-- .ven lang=en -->
Cold comes up from deep under the sand when the sun goes down

```conllu
# sent_id = question:biology:5-the-desert:t6:o3:1
# text = Cold comes up from deep under the sand when the sun goes down
1	Cold	cold	NOUN	NN	Number=Sing	2	nsubj	_	_
2	comes	come	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	up	up	ADV	RB	_	2	advmod	_	_
4	from	from	ADP	IN	_	5	case	_	_
5	deep	deep	ADJ	JJ	Degree=Pos	2	obl	_	_
6	under	under	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	sand	sand	NOUN	NN	Number=Sing	5	obl	_	_
9	when	when	SCONJ	WRB	_	12	mark	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	sun	sun	NOUN	NN	Number=Sing	12	nsubj	_	_
12	goes	go	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	advcl	_	_
13	down	down	ADV	RB	_	12	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **come up** | present | Cold |  |  | deep |  |  | vn escape-51.1-1 «NP V PP.initial\_location»: agent=Theme from deep=Initial\_Location |
| 2 | **go down** | present | the sun |  |  |  |  | down *property* | vn calibratable\_cos-45.6.1-1 «NP.attribute V»: agent=Attribute |

### Option 4 · ← Mova's choice · ✓ the right answer {#o4}

<!-- .ven lang=en -->
Dry air and clear skies let the ground's heat escape into space

```conllu
# sent_id = question:biology:5-the-desert:t6:o4:1
# text = Dry air and clear skies let the ground's heat escape into space
1	Dry	dry	ADJ	JJ	Degree=Pos	2	amod	_	_
2	air	air	NOUN	NN	Number=Sing	6	nsubj	_	_
3	and	and	CCONJ	CC	_	5	cc	_	_
4	clear	clear	ADJ	JJ	Degree=Pos	5	amod	_	_
5	skies	sky	NOUN	NNS	Number=Plur	2	conj	_	_
6	let	let	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	ground	ground	NOUN	NN	Number=Sing	10	nmod:poss	_	SpaceAfter=No
9	's	's	PART	POS	_	8	case	_	_
10	heat	heat	NOUN	NN	Number=Sing	6	obj	_	_
11	escape	escape	VERB	VB	VerbForm=Inf	6	xcomp	_	_
12	into	into	ADP	IN	_	13	case	_	_
13	space	space	NOUN	NN	Number=Sing	11	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **let** | present | Dry air and clear skies | the ground's heat |  |  |  |  | tree rules |
| 2 | **escape** | infinitive | the ground's heat *not said here* |  |  | space |  |  | vn escape-51.1-1-1 «NP V PP.initial\_location»: agent=Theme into space=Initial\_Location |
| 3 | **heat** |  | the ground |  |  |  |  |  | nom heat «phenomenon intransitive»: poss=agent |

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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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