---
title: A car at 30 mph needs about 23 m to stop, and a lorry driver sitting… — Bike helmets and roads · tree and pragmatics
description: A car at 30 mph needs about 23 m to stop, and a lorry driver sitting high up may not see a child next to the cab at all, so the rider who stays seen and stays back is the one who gets home. Who acts: car, lorry driver, rider, one. A sentence of the lesson «Bike helmets and roads» of the medicine cou
---

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# Bike helmets and roads, sentence 4

<!-- .ven lang=en -->
A car at 30 mph needs about 23 m to stop, and a lorry driver sitting high up may not see a child next to the cab at all, so the rider who stays seen and stays back is the one who gets home.

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**Who acts:** car, lorry driver, rider, one · **What happens:** need, stop, sit up, not see, stay, see · **To what, where:** 23 m, child, one

<!-- .vabout -->
This is a sentence of the lesson «Bike helmets and roads» of the medicine 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 (car, lorry driver, rider, one), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:medicine:072-bike-helmets-and-roads.lesson:4
# text = A car at 30 mph needs about 23 m to stop, and a lorry driver sitting high up may not see a child next to the cab at all, so the rider who stays seen and stays back is the one who gets home.
# source = school lesson (ours)
# course = medicine
# lesson = 072-bike-helmets-and-roads.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	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	car	car	NOUN	NN	Number=Sing	6	nsubj	_	_
3	at	at	ADP	IN	_	5	case	_	_
4	30	30	NUM	CD	NumForm=Digit|NumType=Card	5	nummod	_	_
5	mph	mph	NOUN	NN	Number=Sing	2	nmod	_	_
6	needs	need	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	about	about	ADV	RB	_	8	advmod	_	_
8	23	23	NUM	CD	NumForm=Digit|NumType=Card	9	nummod	_	_
9	m	m	NOUN	NNS	Number=Plur	6	obj	_	_
10	to	to	PART	TO	_	11	mark	_	_
11	stop	stop	VERB	VB	VerbForm=Inf	6	advcl	_	Agree=R5-strong|Haiku=9:acl
12	,	,	PUNCT	,	_	22	punct	_	Agree=R6-punct-agree|Haiku=17:punct
13	and	and	CCONJ	CC	_	22	cc	_	_
14	a	a	DET	DT	Definite=Ind|PronType=Art	16	det	_	_
15	lorry	lorry	NOUN	NN	Number=Sing	16	compound	_	_
16	driver	driver	NOUN	NN	Number=Sing	22	nsubj	_	_
17	sitting	sit	VERB	VBG	Tense=Pres|VerbForm=Part	16	acl	_	_
18	high	high	ADV	RB	Degree=Pos	17	advmod	_	_
19	up	up	ADV	RB	_	17	advmod	_	_
20	may	may	AUX	MD	VerbForm=Fin	22	aux	_	_
21	not	not	PART	RB	Polarity=Neg	22	advmod	_	_
22	see	see	VERB	VB	VerbForm=Inf	6	conj	_	_
23	a	a	DET	DT	Definite=Ind|PronType=Art	24	det	_	_
24	child	child	NOUN	NN	Number=Sing	22	obj	_	_
25	next	next	ADV	RB	ExtPos=ADP	28	case	_	_
26	to	to	ADP	IN	_	28	case	_	_
27	the	the	DET	DT	Definite=Def|PronType=Art	28	det	_	_
28	cab	cab	NOUN	NN	Number=Sing	22	obl	_	_
29	at	at	ADP	IN	_	30	fixed	_	_
30	all	all	ADV	RB	PronType=Tot	22	advmod	_	_
31	,	,	PUNCT	,	_	34	punct	_	_
32	so	so	ADV	RB	_	43	advmod	_	_
33	the	the	DET	DT	Definite=Def|PronType=Art	34	det	_	_
34	rider	rider	NOUN	NN	Number=Sing	43	nsubj	_	_
35	who	who	PRON	WP	PronType=Rel	36	nsubj	_	_
36	stays	stay	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	34	acl:relcl	_	_
37	seen	see	VERB	VBN	Tense=Past|VerbForm=Part	36	xcomp	_	_
38	and	and	CCONJ	CC	_	39	cc	_	_
39	stays	stay	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	36	conj	_	_
40	back	back	ADV	RB	_	39	advmod	_	_
41	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	43	cop	_	_
42	the	the	DET	DT	Definite=Def|PronType=Art	43	det	_	_
43	one	one	NOUN	NN	Number=Sing	6	parataxis	_	_
44	who	who	PRON	WP	PronType=Rel	45	nsubj	_	_
45	gets	get	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	43	acl:relcl	_	_
46	home	home	ADV	RB	_	45	advmod	_	_
47	.	.	PUNCT	.	_	6	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 | **need** | present | a car at 30 mph | 23 m |  |  |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot m=Theme |
| 2 | **stop** | to-infinitive | a car at 30 mph *not said here* |  |  |  |  |  | vn stop-55.4-1-1 «NP.eventuality V»: agent=Eventuality |
| 3 | **sit up** | gerund | a lorry driver *not said here* |  |  |  |  | high *property* | vn assuming\_position-50 «NP V»: agent=Agent |
| 4 | **not** **see** | may | a lorry driver | a child |  |  |  | next the cab; all *property* | vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer child=Stimulus |
| 5 | **stay** | present | the rider |  |  |  |  |  | tree rules |
| 6 | **see** | participle | the rider *not said here* |  |  |  |  |  | vn comprehend-87.2-1-1 «NP V»: agent=Experiencer |
| 7 | **stay back** | present | the rider *not said here* |  |  |  |  |  | vn exist-47.1 «NP V»: agent=Theme |
| 8 | **is a** | present | the rider | the one |  |  |  |  | tree rules |
| 9 | **get** | present | the one |  |  |  |  | home *property* | vn comprehend-87.2-1 «NP V S\_ING»: agent=Experiencer |

<!-- .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:medicine:072-bike-helmets-and-roads.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/).

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