---
title: A tornado is a narrow spinning column of air that reaches from a thu… — Storms: thunder, lightning, hurricanes and torna… · tree and pragmatics
description: A tornado is a narrow spinning column of air that reaches from a thunderstorm cloud down to the ground. Who acts: tornado, air. A sentence of the lesson «Storms: thunder, lightning, hurricanes and tornadoes» of the world course of Mova's primary school with its dependency tree and the pragmatics of 
---

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# Storms: thunder, lightning, hurricanes and tornadoes, sentence 15

<!-- .ven lang=en -->
A tornado is a narrow spinning column of air that reaches from a thunderstorm cloud down to the ground.

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**Who acts:** tornado, air · **What happens:** spin, be, reach · **To what, where:** narrow spinning column, thunderstorm cloud

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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 (tornado, air), 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:15
# text = A tornado is a narrow spinning column of air that reaches from a thunderstorm cloud down to the ground.
# 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): no change
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	tornado	tornado	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	narrow	narrow	ADJ	JJ	Degree=Pos	7	amod	_	_
6	spinning	spin	VERB	VBG	VerbForm=Ger	7	amod	_	_
7	column	column	NOUN	NN	Number=Sing	0	root	_	_
8	of	of	ADP	IN	_	9	case	_	_
9	air	air	NOUN	NN	Number=Sing	7	nmod	_	_
10	that	that	PRON	WDT	PronType=Rel	11	nsubj	_	_
11	reaches	reach	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	acl:relcl	_	_
12	from	from	ADP	IN	_	15	case	_	_
13	a	a	DET	DT	Definite=Ind|PronType=Art	15	det	_	_
14	thunderstorm	thunderstorm	NOUN	NN	Number=Sing	15	compound	_	_
15	cloud	cloud	NOUN	NN	Number=Sing	11	obl	_	_
16	down	down	ADV	RB	_	11	advmod	_	_
17	to	to	ADP	IN	_	19	case	_	_
18	the	the	DET	DT	Definite=Def|PronType=Art	19	det	_	_
19	ground	ground	NOUN	NN	Number=Sing	16	obl	_	_
20	.	.	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 tornado | a narrow spinning column |  |  |  | of air | tree rules |
| 3 | **reach** | present | air |  |  | a thunderstorm cloud |  | down *property* | vn body\_motion-49.2-1-1 «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.

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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:15`.

**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): no change. **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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