---
title: A hurricane is a giant spinning storm that forms over warm tropical… — Storms: thunder, lightning, hurricanes and torna… · tree and pragmatics
description: A hurricane is a giant spinning storm that forms over warm tropical seas: the warm water feeds it with rising damp air, so it grows stronger over the sea and weakens when it moves over land or cold water. Who acts: hurricane, giant spinning storm, warm water, water. A sentence of the lesson «Storms:
---

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# Storms: thunder, lightning, hurricanes and tornadoes, sentence 2

<!-- .ven lang=en -->
A hurricane is a giant spinning storm that forms over warm tropical seas: the warm water feeds it with rising damp air, so it grows stronger over the sea and weakens when it moves over land or cold water.

<!-- .vintro -->
**Who acts:** hurricane, giant spinning storm, warm water, water · **What happens:** spin, be, form, feed, rise, grow · **To what, where:** giant spinning storm, warm tropical seas, hurricane, land

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This is a sentence of the lesson «Storms: thunder, lightning, hurricanes and tornadoes» 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 (hurricane, giant spinning storm, warm water, water), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:068-storms-and-wild-winds.lesson:2
# text = A hurricane is a giant spinning storm that forms over warm tropical seas: the warm water feeds it with rising damp air, so it grows stronger over the sea and weakens when it moves over land or cold water.
# source = school lesson (ours)
# course = world
# lesson = 068-storms-and-wild-winds.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, R8-pos-agree ×1
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	hurricane	hurricane	NOUN	NN	Number=Sing	7	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	cop	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
5	giant	giant	ADJ	JJ	Degree=Pos	7	amod	_	_
6	spinning	spin	VERB	VBG	VerbForm=Ger	7	amod	_	_
7	storm	storm	NOUN	NN	Number=Sing	0	root	_	_
8	that	that	PRON	WDT	PronType=Rel	9	nsubj	_	_
9	forms	form	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	acl:relcl	_	_
10	over	over	ADP	IN	_	13	case	_	_
11	warm	warm	ADJ	JJ	Degree=Pos	13	amod	_	_
12	tropical	tropical	ADJ	JJ	Degree=Pos	13	amod	_	_
13	seas	sea	NOUN	NNS	Number=Plur	9	obl	_	Agree=R8-pos-agree|Haiku=9:obl|HaikuPos=NOUN:NN:Number=Sing
14	:	:	PUNCT	:	_	18	punct	_	_
15	the	the	DET	DT	Definite=Def|PronType=Art	17	det	_	_
16	warm	warm	ADJ	JJ	Degree=Pos	17	amod	_	_
17	water	water	NOUN	NN	Number=Sing	18	nsubj	_	_
18	feeds	feed	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	parataxis	_	_
19	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	18	obj	_	_
20	with	with	ADP	IN	_	23	case	_	_
21	rising	rise	VERB	VBG	VerbForm=Ger	23	amod	_	_
22	damp	damp	ADJ	JJ	Degree=Pos	23	amod	_	_
23	air	air	NOUN	NN	Number=Sing	18	obl	_	_
24	,	,	PUNCT	,	_	27	punct	_	_
25	so	so	ADV	RB	_	27	advmod	_	_
26	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	27	nsubj	_	_
27	grows	grow	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	18	conj	_	_
28	stronger	strong	ADJ	JJR	Degree=Cmp	27	xcomp	_	_
29	over	over	ADP	IN	_	31	case	_	_
30	the	the	DET	DT	Definite=Def|PronType=Art	31	det	_	_
31	sea	sea	NOUN	NN	Number=Sing	28	obl	_	_
32	and	and	CCONJ	CC	_	33	cc	_	_
33	weakens	weaken	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	27	conj	_	Agree=R5-strong|Haiku=18:conj
34	when	when	SCONJ	WRB	_	36	mark	_	_
35	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	36	nsubj	_	_
36	moves	move	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	33	advcl	_	_
37	over	over	ADP	IN	_	38	case	_	_
38	land	land	NOUN	NN	Number=Sing	36	obl	_	_
39	or	or	CCONJ	CC	_	41	cc	_	_
40	cold	cold	ADJ	JJ	Degree=Pos	41	amod	_	_
41	water	water	NOUN	NN	Number=Sing	38	conj	_	_
42	.	.	PUNCT	.	_	7	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **spin** | gerund |  |  |  |  |  |  | vn roll-51.3.1 «NP.theme V»: agent=Theme |
| 2 | **is a** | present | a hurricane | a giant spinning storm |  |  |  |  | tree rules |
| 3 | **form** | present | a giant spinning storm |  |  | warm tropical seas |  |  | vn appear-48.1.1 «NP V PP.location»: agent=Theme over sea=Location |
| 4 | **feed** | present | the warm water | hurricane |  |  |  | with rising damp air | vn feeding-39.7 «NP V NP PP.recipient»: agent=Agent it=Theme |
| 5 | **rise** | gerund |  |  |  |  |  |  | vn assuming\_position-50 «NP V»: agent=Agent |
| 6 | **grow** | present | water |  |  |  |  | strong *property* | vn appear-48.1.1 «NP V»: agent=Theme |
| 7 | **weaken** | present | water *not said here* |  |  |  |  |  | vn other\_cos-45.4 «NP.patient V»: agent=Patient |
| 8 | **move** | present | water |  |  | land or cold water |  |  | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme over land=Trajectory |

<!-- .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:068-storms-and-wild-winds.lesson:2`.

**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, R8-pos-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/).

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