---
title: A bike ridden at night needs a white light at the front and a red li… — Buses, trains and being seen · tree and pragmatics
description: A bike ridden at night needs a white light at the front and a red light at the back. Who acts: bike. A sentence of the lesson «Buses, trains and being seen» of the everyday course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Buses, trains and being seen, sentence 19

<!-- .ven lang=en -->
A bike ridden at night needs a white light at the front and a red light at the back.

<!-- .vintro -->
**Who acts:** bike · **What happens:** ride, need · **To what, where:** bike, white light, front

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This is a sentence of the lesson «Buses, trains and being seen» 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 (bike), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:everyday:043-buses-trains-and-being-seen.lesson:19
# text = A bike ridden at night needs a white light at the front and a red light at the back.
# source = school lesson (ours)
# course = everyday
# lesson = 043-buses-trains-and-being-seen.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	bike	bike	NOUN	NN	Number=Sing	6	nsubj	_	_
3	ridden	ride	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	2	acl	_	_
4	at	at	ADP	IN	_	5	case	_	_
5	night	night	NOUN	NN	Number=Sing	3	obl	_	_
6	needs	need	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
8	white	white	ADJ	JJ	Degree=Pos	9	amod	_	_
9	light	light	NOUN	NN	Number=Sing	6	obj	_	_
10	at	at	ADP	IN	_	12	case	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	front	front	NOUN	NN	Number=Sing	9	nmod	_	_
13	and	and	CCONJ	CC	_	16	cc	_	_
14	a	a	DET	DT	Definite=Ind|PronType=Art	16	det	_	_
15	red	red	ADJ	JJ	Degree=Pos	16	amod	_	_
16	light	light	NOUN	NN	Number=Sing	9	conj	_	_
17	at	at	ADP	IN	_	19	case	_	_
18	the	the	DET	DT	Definite=Def|PronType=Art	19	det	_	_
19	back	back	NOUN	NN	Number=Sing	16	nmod	_	_
20	.	.	PUNCT	.	_	6	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 | **ride** | participle |  | a bike *not said here* |  |  | night |  | vn nonvehicle-51.4.2 «NP.agent V»: agent=Agent |
| 2 | **need** | present | a bike | a white light and a red light at the back |  | the front |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot light=Theme |

<!-- .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:everyday:043-buses-trains-and-being-seen.lesson:19`.

**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: [Buses, trains and being seen, 18](https://md.mova.elamur.ai/free/en/corpora/school/everyday/43-buses-trains-and-being-seen/18/)
- next →: [Buses, trains and being seen, 20](https://md.mova.elamur.ai/free/en/corpora/school/everyday/43-buses-trains-and-being-seen/20/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/everyday/43-buses-trains-and-being-seen/)