---
title: How could traffic lights help a colour-blind driver who cannot tell… — Eyes and ears deeper: glasses, colour… · tree and pragmatics
description: How could traffic lights help a colour-blind driver who cannot tell red from green? Test 2 · ★★ of lesson 362 «Eyes and ears deeper: glasses, colour blindness, tears, earwax and dizziness» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of 
---

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# Test 2 · ★★ · Eyes and ears deeper: glasses, colour blindness, tears, ea…

<!-- .ven lang=en -->
How could traffic lights help a colour-blind driver who cannot tell red from green?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 2 · wrong ✗ · **Who acts:** traffic lights, blind driver · **What happens:** help, not tell · **To what, where:** blind driver, red, green · **Speech:** someone speaks here

<!-- .vabout -->
This is test 2 · ★★ of lesson 362 «Eyes and ears deeper: glasses, colour blindness, tears, earwax and dizziness» of the biology course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/biology/362-eyes-and-ears-deeper-glasses-colour-blindness-tears-earwax-and-dizziness/#t2).

## The question {#question}

```conllu
# sent_id = question:biology:362-eyes-and-ears-deeper-glasses-colour-blindness-tears-earwax-and-dizziness:t2:1
# text = How could traffic lights help a colour-blind driver who cannot tell red from green?
1	How	how	ADV	WRB	PronType=Int	5	advmod	_	_
2	could	could	AUX	MD	VerbForm=Fin	5	aux	_	_
3	traffic	traffic	NOUN	NN	Number=Sing	4	compound	_	_
4	lights	light	NOUN	NNS	Number=Plur	5	nsubj	_	_
5	help	help	VERB	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	0	root	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
7	colour	colour	NOUN	NN	Number=Sing	9	compound	_	SpaceAfter=No
8	-	-	PUNCT	HYPH	_	7	punct	_	SpaceAfter=No
9	blind	blind	ADJ	JJ	Degree=Pos	10	amod	_	_
10	driver	driver	NOUN	NN	Number=Sing	5	obj	_	_
11	who	who	PRON	WP	PronType=Rel	14	nsubj	_	_
12	can	can	AUX	MD	VerbForm=Fin	14	aux	_	SpaceAfter=No
13	not	not	PART	RB	Polarity=Neg	14	advmod	_	_
14	tell	tell	VERB	VB	VerbForm=Inf	10	acl:relcl	_	_
15	red	red	ADJ	JJ	Degree=Pos	14	obj	_	_
16	from	from	ADP	IN	_	17	case	_	_
17	green	green	ADJ	JJ	Degree=Pos	14	obl	_	SpaceAfter=No
18	?	?	PUNCT	.	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **help** | could | traffic lights |  | a blind driver |  |  |  | vn help-72.1-1-1 «NP V NP»: agent=Agent driver=Beneficiary |
| 2 | **not** **tell** *speech: assert* | can | a blind driver | red |  | green |  |  | vn transfer\_mesg-37.1.1-1-1 «NP V NP.recipient»: agent=Agent red=Recipient |

<!-- .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.

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
Colour-blind people are not allowed near roads

```conllu
# sent_id = question:biology:362-eyes-and-ears-deeper-glasses-colour-blindness-tears-earwax-and-dizziness:t2:o1:1
# text = Colour-blind people are not allowed near roads
1	Colour	colour	NOUN	NN	Number=Sing	3	compound	_	SpaceAfter=No
2	-	-	PUNCT	HYPH	_	1	punct	_	SpaceAfter=No
3	blind	blind	ADJ	JJ	Degree=Pos	4	amod	_	_
4	people	people	NOUN	NNS	Number=Plur	7	nsubj:pass	_	_
5	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	aux:pass	_	_
6	not	not	PART	RB	Polarity=Neg	7	advmod	_	_
7	allowed	allow	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
8	near	near	ADP	IN	_	9	case	_	_
9	roads	road	NOUN	NNS	Number=Plur	7	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **allow** | present · passive |  | blind people |  | roads |  |  | vn allow-64.1-1 «NP V NP»: subject=Beneficiary |

### Option 2 · ✓ the right answer {#o2}

<!-- .ven lang=en -->
Red is always in the same place, at the top, so the position tells him

<!-- fold The tree, 15 words -->
```conllu
# sent_id = question:biology:362-eyes-and-ears-deeper-glasses-colour-blindness-tears-earwax-and-dizziness:t2:o2:1
# text = Red is always in the same place, at the top, so the position tells him
1	Red	red	ADJ	JJ	Degree=Pos	7	amod	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	cop	_	_
3	always	always	ADV	RB	PronType=Tot	7	advmod	_	_
4	in	in	ADP	IN	_	7	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	same	same	ADJ	JJ	Degree=Pos	7	amod	_	_
7	place	place	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
8	,	,	PUNCT	,	_	11	punct	_	_
9	at	at	ADP	IN	_	11	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	top	top	NOUN	NN	Number=Sing	7	conj	_	SpaceAfter=No
12	,	,	PUNCT	,	_	16	punct	_	_
13	so	so	ADV	RB	_	16	advmod	_	_
14	the	the	DET	DT	Definite=Def|PronType=Art	15	det	_	_
15	position	position	NOUN	NN	Number=Sing	16	nsubj	_	_
16	tells	tell	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	parataxis	_	_
17	him	he	PRON	PRP	Case=Acc|Gender=Masc|Number=Sing|Person=3|PronType=Prs	16	iobj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present |  |  |  | the Red same place and the top |  | always *property* | tree rules |
| 2 | **tell** *speech: assert* | present | the position |  | him *= he* |  |  |  | vn transfer\_mesg-37.1.1-1-1 «NP V NP.recipient»: agent=Agent he=Recipient |

### Option 3 · ← Mova's choice {#o3}

<!-- .ven lang=en -->
Green lights blink and red ones do not

```conllu
# sent_id = question:biology:362-eyes-and-ears-deeper-glasses-colour-blindness-tears-earwax-and-dizziness:t2:o3:1
# text = Green lights blink and red ones do not
1	Green	green	ADJ	JJ	Degree=Pos	2	amod	_	_
2	lights	light	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	blink	blink	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	and	and	CCONJ	CC	_	7	cc	_	_
5	red	red	ADJ	JJ	Degree=Pos	6	amod	_	_
6	ones	one	NOUN	NNS	Number=Plur	7	nsubj	_	_
7	do	do	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	conj	_	_
8	not	not	PART	RB	Polarity=Neg	7	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **blink** | present | Green lights |  |  |  |  |  | vn hiccup-40.1.1 «NP V»: agent=Agent |
| 2 | **not** **do** | present | red ones |  |  |  |  |  | vn act-114-1 «NP V»: agent=Agent |

### Option 4 {#o4}

<!-- .ven lang=en -->
Red lights always make a loud beeping noise so that drivers can hear them change

<!-- fold The tree, 15 words -->
```conllu
# sent_id = question:biology:362-eyes-and-ears-deeper-glasses-colour-blindness-tears-earwax-and-dizziness:t2:o4:1
# text = Red lights always make a loud beeping noise so that drivers can hear them change
1	Red	red	ADJ	JJ	Degree=Pos	2	amod	_	_
2	lights	light	NOUN	NNS	Number=Plur	4	nsubj	_	_
3	always	always	ADV	RB	PronType=Tot	4	advmod	_	_
4	make	make	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
6	loud	loud	ADJ	JJ	Degree=Pos	8	amod	_	_
7	beeping	beeping	NOUN	NN	Number=Sing	8	compound	_	_
8	noise	noise	NOUN	NN	Number=Sing	4	obj	_	_
9	so	so	SCONJ	IN	ExtPos=SCONJ	13	mark	_	_
10	that	that	SCONJ	IN	_	9	fixed	_	_
11	drivers	driver	NOUN	NNS	Number=Plur	13	nsubj	_	_
12	can	can	AUX	MD	VerbForm=Fin	13	aux	_	_
13	hear	hear	VERB	VB	VerbForm=Inf	4	advcl	_	_
14	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	13	obj	_	_
15	change	change	VERB	VB	VerbForm=Inf	13	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | Red lights | a loud beeping noise |  |  |  | always *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset noise=Product |
| 2 | **hear** | can | drivers | lights *= light* |  |  |  |  | tree rules |
| 3 | **change** | infinitive | lights *= light* *not said here* |  |  |  |  |  | vn dress-41.1.1-1-1 «NP V»: agent=Agent |

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**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License.

<!-- /div -->

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- ← previous: [Eyes and ears deeper: glasses, colour…, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/biology/362-eyes-and-ears-deeper-glasses-colour-blindness-tears-earwax-and-dizziness/t1/)
- next →: [Eyes and ears deeper: glasses, colour…, test 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/362-eyes-and-ears-deeper-glasses-colour-blindness-tears-earwax-and-dizziness/t3/)
- ↑ back to [Eyes and ears deeper: glasses, colour blindness, tears, earwax and dizziness](https://md.mova.elamur.ai/free/en/corpora/questions/biology/362-eyes-and-ears-deeper-glasses-colour-blindness-tears-earwax-and-dizziness/)