---
title: Drivers pull over to let emergency vehicles through, so traffic at a… — Sounds that warn · tree and pragmatics
description: Drivers pull over to let emergency vehicles through, so traffic at a crossing can change suddenly. Who acts: Drivers, traffic. A sentence of the lesson «Sounds that warn» of the everyday course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Sounds that warn, sentence 8

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Drivers pull over to let emergency vehicles through, so traffic at a crossing can change suddenly.

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**Who acts:** Drivers, traffic · **What happens:** pull over, let, change · **To what, where:** emergency vehicles

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This is a sentence of the lesson «Sounds that warn» of the everyday 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 (Drivers, traffic), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:everyday:012-sounds-that-warn.lesson:8
# text = Drivers pull over to let emergency vehicles through, so traffic at a crossing can change suddenly.
# source = school lesson (ours)
# course = everyday
# lesson = 012-sounds-that-warn.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	Drivers	driver	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	pull	pull	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	over	over	PART	RP	_	2	compound:prt	_	_
4	to	to	PART	TO	_	5	mark	_	_
5	let	let	VERB	VB	VerbForm=Inf	2	advcl	_	_
6	emergency	emergency	NOUN	NN	Number=Sing	7	compound	_	_
7	vehicles	vehicle	NOUN	NNS	Number=Plur	5	obj	_	_
8	through	through	ADV	RB	_	5	advmod	_	_
9	,	,	PUNCT	,	_	16	punct	_	_
10	so	so	ADV	RB	_	16	advmod	_	_
11	traffic	traffic	NOUN	NN	Number=Sing	16	nsubj	_	_
12	at	at	ADP	IN	_	14	case	_	_
13	a	a	DET	DT	Definite=Ind|PronType=Art	14	det	_	_
14	crossing	crossing	NOUN	NN	Number=Sing	11	nmod	_	_
15	can	can	AUX	MD	VerbForm=Fin	16	aux	_	_
16	change	change	VERB	VB	VerbForm=Inf	2	parataxis	_	_
17	suddenly	suddenly	ADV	RB	_	16	advmod	_	_
18	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **pull over** | present | Drivers |  |  |  |  |  | vn slide-11.2 «NP V»: agent=Theme |
| 2 | **let** | to-infinitive | Drivers *not said here* | emergency vehicles |  |  |  | through *property* | vn give-13.1-1 «NP V NP»: agent=Agent vehicle=Theme |
| 3 | **change** | can | traffic at a crossing |  |  |  |  | suddenly *property* | vn dress-41.1.1-1-1 «NP V»: agent=Agent |

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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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**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:everyday:012-sounds-that-warn.lesson:8`.

**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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- ← previous: [Sounds that warn, 7](https://md.mova.elamur.ai/free/en/corpora/school/everyday/12-sounds-that-warn/7/)
- next →: [Sounds that warn, 9](https://md.mova.elamur.ai/free/en/corpora/school/everyday/12-sounds-that-warn/9/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/everyday/12-sounds-that-warn/)