---
title: The prevailing wind blowing from the west causes the west of Tehran… — Tehran · tree and pragmatics
description: The prevailing wind blowing from the west causes the west of Tehran to always be exposed to fresh air. Who acts: prevailing wind. A sentence of Wikipedia's «Tehran» with its dependency tree and pragmatics.
---

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# Tehran, sentence 184

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From Wikipedia, [«Tehran»](https://en.wikipedia.org/wiki/Tehran), revision of the 2026-09-01 dump, [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/). The trees and pragmatics of these pages, Mova's parse of that text, are CC BY-SA 4.0 too.

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The prevailing wind blowing from the west causes the west of Tehran to always be exposed to fresh air.

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**Who acts:** prevailing wind · **What happens:** prevail, blow, cause, expose · **To what, where:** west, fresh air

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This is a sentence of the English Wikipedia article «Tehran». The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (prevailing wind), what happens, when and where, as Mova's frames read it from the tree.

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**Mova's own parse.** This tree may be wrong. The article's note marks are left out of the parse.

## The tree {#tree}

```conllu
# sent_id = wikipedia:Tehran:184
# text = The prevailing wind blowing from the west causes the west of Tehran to always be exposed to fresh air.
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	prevailing	prevail	VERB	VBG	VerbForm=Ger	3	amod	_	_
3	wind	wind	NOUN	NN	Number=Sing	8	nsubj	_	_
4	blowing	blow	VERB	VBG	VerbForm=Ger	3	acl	_	_
5	from	from	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	west	west	NOUN	NN	Number=Sing	4	obl	_	_
8	causes	cause	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	west	west	NOUN	NN	Number=Sing	8	obj	_	_
11	of	of	ADP	IN	_	12	case	_	_
12	Tehran	Tehran	PROPN	NNP	Number=Sing	10	nmod	_	_
13	to	to	PART	TO	_	16	mark	_	_
14	always	always	ADV	RB	PronType=Tot	16	advmod	_	_
15	be	be	AUX	VB	VerbForm=Inf	16	aux:pass	_	_
16	exposed	expose	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	10	acl	_	_
17	to	to	ADP	IN	_	19	case	_	_
18	fresh	fresh	ADJ	JJ	Degree=Pos	19	amod	_	_
19	air	air	NOUN	NN	Number=Sing	16	obl	_	SpaceAfter=No
20	.	.	PUNCT	.	_	8	punct	_	_
```

## Pragmatics {#pragmatics}

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **prevail** | gerund |  |  |  |  |  |  | vn exist-47.1 «NP V»: agent=Theme |
| 2 | **blow** | gerund | the prevailing wind *not said here* |  |  |  |  | from the west | vn split-23.2 «NP V PP.co-patient»: agent=Patient from west=Co-Patient |
| 3 | **cause** | present | the prevailing wind | the west of Tehran |  |  |  |  | vn engender-27.1-1 «NP V NP»: agent=Precondition west=Patient |
| 4 | **expose** | to-infinitive · passive | the prevailing wind *not said here* | the west of Tehran *not said here* | fresh air |  |  | always *property* | vn reflexive\_appearance-48.1.2 «NP V NP PP.recipient»: to air=Recipient |

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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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**Text:** the English Wikipedia, «Tehran», revision of the 2026-09-01 dump, CC BY-SA 4.0. **Tree:** Mova's own parse, CC BY-SA 4.0 as the text is. **Frames:** Mova's frames reader (`prag`), the article read in order, CC BY-SA 4.0.

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