---
title: Why can't you see round a corner without a mirror? — Light, shadows and colours · tree and pragmatics
description: Why can't you see round a corner without a mirror? Test 2 · ★ of lesson 53 «Light, shadows and colours» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Test 2 · ★ · Light, shadows and colours

<!-- .ven lang=en -->
Why can't you see round a corner without a mirror?

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 3 · wrong ✗ · **Who acts:** you · **What happens:** not see

<!-- .vabout -->
This is test 2 · ★ of lesson 53 «Light, shadows and colours» of the world 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/world/53-light/#t2).

## The question {#question}

```conllu
# sent_id = question:world:53-light:t2:1
# text = Why can't you see round a corner without a mirror?
1	Why	why	ADV	WRB	PronType=Int	5	advmod	_	_
2	ca	can	AUX	MD	VerbForm=Fin	5	aux	_	SpaceAfter=No
3	n't	not	PART	RB	Polarity=Neg	5	advmod	_	_
4	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	5	nsubj	_	_
5	see	see	VERB	VBP	Mood=Ind|Person=2|Tense=Pres|VerbForm=Fin	0	root	_	_
6	round	round	ADP	IN	_	8	case	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	corner	corner	NOUN	NN	Number=Sing	5	obl	_	_
9	without	without	ADP	IN	_	11	case	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
11	mirror	mirror	NOUN	NN	Number=Sing	5	obl	_	SpaceAfter=No
12	?	?	PUNCT	.	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **see** | can | you |  |  |  |  | round a corner; without a mirror | vn comprehend-87.2-1-1 «NP V»: 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.

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
Your eyes only work straight ahead

```conllu
# sent_id = question:world:53-light:t2:o1:1
# text = Your eyes only work straight ahead
1	Your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	2	nmod:poss	_	_
2	eyes	eye	NOUN	NNS	Number=Plur	4	nsubj	_	_
3	only	only	ADV	RB	_	4	advmod	_	_
4	work	work	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	straight	straight	ADV	RB	_	6	advmod	_	_
6	ahead	ahead	ADV	RB	_	4	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **work** | present | Your eyes |  |  |  |  | ahead *property* | vn employment-95.3 «NP V»: agent=Agent |

### Option 2 · ← Mova's choice {#o2}

<!-- .ven lang=en -->
The corner absorbs all the light

```conllu
# sent_id = question:world:53-light:t2:o2:1
# text = The corner absorbs all the light
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	corner	corner	NOUN	NN	Number=Sing	3	nsubj	_	_
3	absorbs	absorb	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	all	all	DET	PDT	PronType=Tot	6	det:predet	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	light	light	NOUN	NN	Number=Sing	3	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **absorb** | present | the corner | all light |  |  |  |  | vn absorb-39.8 «NP V NP»: agent=Goal light=Theme |

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Light goes in straight lines and does not bend round it

```conllu
# sent_id = question:world:53-light:t2:o3:1
# text = Light goes in straight lines and does not bend round it
1	Light	light	NOUN	NN	Number=Sing	2	nsubj	_	_
2	goes	go	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	in	in	ADP	IN	_	5	case	_	_
4	straight	straight	ADJ	JJ	Degree=Pos	5	amod	_	_
5	lines	line	NOUN	NNS	Number=Plur	2	obl	_	_
6	and	and	CCONJ	CC	_	9	cc	_	_
7	does	do	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	aux	_	_
8	not	not	PART	RB	Polarity=Neg	9	advmod	_	_
9	bend	bend	VERB	VB	VerbForm=Inf	2	conj	_	_
10	round	round	ADP	IN	_	11	case	_	_
11	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	9	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **go** | present | Light |  |  | straight lines |  |  | vn occur-48.3-2 «NP V PP»: agent=Theme in line=Location |
| 2 | **not** **bend** | present · do-support | Light *not said here* |  |  | Light |  |  | vn meander-47.7-1 «NP V PP.location»: agent=Theme round it=Location |

### Option 4 {#o4}

<!-- .ven lang=en -->
Walls are made of dark material

```conllu
# sent_id = question:world:53-light:t2:o4:1
# text = Walls are made of dark material
1	Walls	wall	NOUN	NNS	Number=Plur	3	nsubj:pass	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	made	make	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	of	of	ADP	IN	_	6	case	_	_
5	dark	dark	ADJ	JJ	Degree=Pos	6	amod	_	_
6	material	material	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present · passive |  | Walls |  |  |  | of dark material | vn build-26.1-1 «NP.asset V NP»: subject=Product |

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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.

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- ← previous: [Light, shadows and colours, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/world/53-light/t1/)
- next →: [Light, shadows and colours, test 3](https://md.mova.elamur.ai/free/en/corpora/questions/world/53-light/t3/)
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