---
title: A bike needs a white light at the front and a red light at the back… — Bicycles and other wheels · tree and pragmatics
description: A bike needs a white light at the front and a red light at the back at night; reflectors are made of tiny corner shapes that send light straight back to where it came from, such as a driver's headlights. Who acts: bike, tiny corner shapes. A sentence of the lesson «Bicycles and other wheels» of the 
---

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# Bicycles and other wheels, sentence 14

<!-- .ven lang=en -->
A bike needs a white light at the front and a red light at the back at night; reflectors are made of tiny corner shapes that send light straight back to where it came from, such as a driver's headlights.

<!-- .vintro -->
**Who acts:** bike, tiny corner shapes · **What happens:** need, make, send, come · **To what, where:** white light, front, reflectors, light

<!-- .vabout -->
This is a sentence of the lesson «Bicycles and other wheels» of the technology 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, tiny corner shapes), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:technology:025-bicycles-and-other-wheels.lesson:14
# text = A bike needs a white light at the front and a red light at the back at night; reflectors are made of tiny corner shapes that send light straight back to where it came from, such as a driver's headlights.
# source = school lesson (ours)
# course = technology
# lesson = 025-bicycles-and-other-wheels.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 ×3, R7-rel-agree ×1
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	bike	bike	NOUN	NN	Number=Sing	3	nsubj	_	_
3	needs	need	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
5	white	white	ADJ	JJ	Degree=Pos	6	amod	_	_
6	light	light	NOUN	NN	Number=Sing	3	obj	_	_
7	at	at	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	front	front	NOUN	NN	Number=Sing	3	obl	_	_
10	and	and	CCONJ	CC	_	13	cc	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
12	red	red	ADJ	JJ	Degree=Pos	13	amod	_	_
13	light	light	NOUN	NN	Number=Sing	6	conj	_	Agree=R5-strong|Haiku=9:conj
14	at	at	ADP	IN	_	16	case	_	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
16	back	back	NOUN	NN	Number=Sing	13	nmod	_	Agree=R5-strong|Haiku=9:nmod
17	at	at	ADP	IN	_	18	case	_	_
18	night	night	NOUN	NN	Number=Sing	16	nmod	_	_
19	;	;	PUNCT	:	_	22	punct	_	_
20	reflectors	reflector	NOUN	NNS	Number=Plur	22	nsubj:pass	_	_
21	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	22	aux:pass	_	_
22	made	make	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	parataxis	_	Agree=R7-rel-agree|Haiku=3:conj
23	of	of	ADP	IN	_	26	case	_	_
24	tiny	tiny	ADJ	JJ	Degree=Pos	26	amod	_	_
25	corner	corner	NOUN	NN	Number=Sing	26	compound	_	_
26	shapes	shape	NOUN	NNS	Number=Plur	22	obl	_	_
27	that	that	PRON	WDT	PronType=Rel	28	nsubj	_	_
28	send	send	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	26	acl:relcl	_	_
29	light	light	NOUN	NN	Number=Sing	28	obj	_	_
30	straight	straight	ADV	RB	_	31	advmod	_	_
31	back	back	ADV	RB	_	28	advmod	_	Agree=R5-strong|Haiku=22:advmod
32	to	to	ADP	IN	_	35	case	_	_
33	where	where	ADV	WRB	PronType=Rel	35	advmod	_	_
34	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	35	nsubj	_	_
35	came	come	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	31	advcl	_	_
36	from	from	ADP	IN	_	35	obl	_	_
37	,	,	PUNCT	,	_	38	punct	_	_
38	such	such	ADJ	JJ	Degree=Pos	22	conj	_	_
39	as	as	ADP	IN	_	43	case	_	_
40	a	a	DET	DT	Definite=Ind|PronType=Art	41	det	_	_
41	driver	driver	NOUN	NN	Number=Sing	43	nmod:poss	_	_
42	's	's	PART	POS	_	41	case	_	_
43	headlights	headlight	NOUN	NNS	Number=Plur	22	obl	_	_
44	.	.	PUNCT	.	_	3	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 bike | a white light and a red light at the back at night |  | the front |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot light=Theme |
| 2 | **make** | present · passive |  | reflectors |  |  |  | of tiny corner shapes; as a driver's headlights | vn build-26.1-1 «NP.asset V NP»: subject=Product |
| 3 | **send** | present | tiny corner shapes | light |  |  |  |  | vn confine-92-1 «NP V NP»: agent=Agent light=Theme |
| 4 | **come** | past | bike |  |  |  |  |  | vn escape-51.1-1 «NP V»: agent=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:technology:025-bicycles-and-other-wheels.lesson:14`.

**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 ×3, R7-rel-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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- ← previous: [Bicycles and other wheels, 13](https://md.mova.elamur.ai/free/en/corpora/school/technology/25-bicycles-and-other-wheels/13/)
- next →: [Bicycles and other wheels, 15](https://md.mova.elamur.ai/free/en/corpora/school/technology/25-bicycles-and-other-wheels/15/)
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