---
title: Clouds form when moist air rises and cools; when the droplets grow h… — Weather: pressure, wind, clouds and storms · tree and pragmatics
description: Clouds form when moist air rises and cools; when the droplets grow heavy they fall as rain, and when the cloud is cold enough the water falls as snow or hail. Who acts: Clouds, moist air, droplets, cloud. A sentence of the lesson «Weather: pressure, wind, clouds and storms» of the world course of Mo
---

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# Weather: pressure, wind, clouds and storms, sentence 4

<!-- .ven lang=en -->
Clouds form when moist air rises and cools; when the droplets grow heavy they fall as rain, and when the cloud is cold enough the water falls as snow or hail.

<!-- .vintro -->
**Who acts:** Clouds, moist air, droplets, cloud, water · **What happens:** form, rise, cool, grow, fall, be

<!-- .vabout -->
This is a sentence of the lesson «Weather: pressure, wind, clouds and storms» of the world course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (Clouds, moist air, droplets, cloud), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:015-weather.lesson:4
# text = Clouds form when moist air rises and cools; when the droplets grow heavy they fall as rain, and when the cloud is cold enough the water falls as snow or hail.
# source = school lesson (ours)
# course = world
# lesson = 015-weather.lesson
# annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R5-strong ×1, R6-punct-agree ×1
1	Clouds	cloud	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	form	form	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	when	when	ADV	WRB	PronType=Int	6	advmod	_	_
4	moist	moist	ADJ	JJ	Degree=Pos	5	amod	_	_
5	air	air	NOUN	NN	Number=Sing	6	nsubj	_	_
6	rises	rise	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	advcl	_	_
7	and	and	CCONJ	CC	_	8	cc	_	_
8	cools	cool	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	conj	_	_
9	;	;	PUNCT	,	_	16	punct	_	_
10	when	when	ADV	WRB	PronType=Int	13	advmod	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	droplets	droplet	NOUN	NNS	Number=Plur	13	nsubj	_	_
13	grow	grow	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	16	advcl	_	_
14	heavy	heavy	ADJ	JJ	Degree=Pos	13	xcomp	_	_
15	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	16	nsubj	_	_
16	fall	fall	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	advcl	_	_
17	as	as	ADP	IN	_	18	case	_	_
18	rain	rain	NOUN	NN	Number=Sing	16	obl	_	_
19	,	,	PUNCT	,	_	29	punct	_	Agree=R6-punct-agree|Haiku=25:punct
20	and	and	CCONJ	CC	_	29	cc	_	_
21	when	when	ADV	WRB	PronType=Int	29	advmod	_	_
22	the	the	DET	DT	Definite=Def|PronType=Art	23	det	_	_
23	cloud	cloud	NOUN	NN	Number=Sing	25	nsubj	_	_
24	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	25	cop	_	_
25	cold	cold	ADJ	JJ	Degree=Pos	29	advcl	_	_
26	enough	enough	ADV	RB	_	25	advmod	_	Agree=R5-strong|Haiku=29:advmod
27	the	the	DET	DT	Definite=Def|PronType=Art	28	det	_	_
28	water	water	NOUN	NN	Number=Sing	29	nsubj	_	_
29	falls	fall	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	16	conj	_	_
30	as	as	ADP	IN	_	31	case	_	_
31	snow	snow	NOUN	NN	Number=Sing	29	obl	_	_
32	or	or	CCONJ	CC	_	33	cc	_	_
33	hail	hail	NOUN	NN	Number=Sing	31	conj	_	_
34	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- sa -->
- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: changed polarity=none

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **form** | present | Clouds |  |  |  |  |  | vn appear-48.1.1 «NP V»: agent=Theme |
| 2 | **rise** | present | moist air |  |  |  |  |  | vn assuming\_position-50 «NP V»: agent=Agent |
| 3 | **cool** | present | moist air *not said here* |  |  |  |  |  | vn other\_cos-45.4 «NP.patient V»: agent=Patient |
| 4 | **grow** | present | the droplets |  |  |  |  | heavy *property* | vn appear-48.1.1 «NP V»: agent=Theme |
| 5 | **fall** | present | droplets *= droplet* |  |  |  |  | as rain | vn occur-48.3 «NP V»: agent=Theme |
| 6 | **is** | present | the cloud |  |  |  |  | cold, enough *property* | tree rules |
| 7 | **fall** | present | the water |  |  |  |  | as snow or hail | vn occur-48.3 «NP V»: agent=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.

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**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:world:015-weather.lesson:4`.

**The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R5-strong ×1, R6-punct-agree ×1. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/).

<!-- /div -->

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