---
title: Try it: shut your eyes and walk slowly towards a wall while humming.… — Echolocation in the sea and in people:… · tree and pragmatics
description: Try it: shut your eyes and walk slowly towards a wall while humming. What may you notice? Test 3 · ★★ of lesson 230 «Echolocation in the sea and in people: dolphins, whales, swiftlets and clicking humans» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the 
---

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# Test 3 · ★★ · Echolocation in the sea and in people: dolphins, whales, s…

<!-- .ven lang=en -->
Try it: shut your eyes and walk slowly towards a wall while humming. What may you notice?

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 3 · wrong ✗ · **Who acts:** you · **What happens:** try, shut, walk, hum, notice · **To what, where:** it, eyes, wall

<!-- .vabout -->
This is test 3 · ★★ of lesson 230 «Echolocation in the sea and in people: dolphins, whales, swiftlets and clicking humans» 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/230-echolocation-in-the-sea-and-in-people-dolphins-whales-swiftlets-and-clicking-humans/#t3).

## The question {#question}

<!-- .note -->
*Sentence 1:* Try it: shut your eyes and walk slowly towards a wall while humming.

```conllu
# sent_id = question:biology:230-echolocation-in-the-sea-and-in-people-dolphins-whales-swiftlets-and-clicking-humans:t3:1
# text = Try it: shut your eyes and walk slowly towards a wall while humming.
1	Try	try	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	1	obj	_	SpaceAfter=No
3	:	:	PUNCT	:	_	4	punct	_	_
4	shut	shut	VERB	VB	Mood=Imp|VerbForm=Fin	1	conj	_	_
5	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	6	nmod:poss	_	_
6	eyes	eye	NOUN	NNS	Number=Plur	4	obj	_	_
7	and	and	CCONJ	CC	_	8	cc	_	_
8	walk	walk	VERB	VB	Mood=Imp|VerbForm=Fin	1	conj	_	_
9	slowly	slowly	ADV	RB	_	8	advmod	_	_
10	towards	towards	ADP	IN	_	12	case	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
12	wall	wall	NOUN	NN	Number=Sing	8	obl	_	_
13	while	while	SCONJ	IN	_	14	mark	_	_
14	humming	hum	VERB	VBG	Tense=Pres|VerbForm=Part	8	advcl	_	SpaceAfter=No
15	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **try** | imperative | you *not said here* | it |  |  |  |  | vn try-61.1 «NP V NP»: agent=Agent it=Eventuality |
| 2 | **shut** | infinitive | you *not said here* | your eyes |  |  |  |  | vn other\_cos-45.4 «NP V NP.patient»: agent=Agent eye=Patient |
| 3 | **walk** | infinitive | you *not said here* |  |  | a wall |  | slowly *property* | vn run-51.3.2-2-1 «NP V PP.location»: agent=Theme towards wall=Destination |
| 4 | **hum** | gerund | you *not said here* |  |  |  |  |  | vn bulge-47.5.3 «NP V»: agent=Location |

<!-- .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.

<!-- .note -->
*Sentence 2:* What may you notice?

```conllu
# sent_id = question:biology:230-echolocation-in-the-sea-and-in-people-dolphins-whales-swiftlets-and-clicking-humans:t3:2
# text = What may you notice?
1	What	what	PRON	WP	PronType=Int	4	obj	_	_
2	may	may	AUX	MD	VerbForm=Fin	4	aux	_	_
3	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	4	nsubj	_	_
4	notice	notice	VERB	VB	VerbForm=Inf	0	root	_	SpaceAfter=No
5	?	?	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **notice** | may | you |  |  |  |  |  | vn see-30.1-1 «NP V S»: agent=Experiencer what=Stimulus |

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
Nothing at all, ever

```conllu
# sent_id = question:biology:230-echolocation-in-the-sea-and-in-people-dolphins-whales-swiftlets-and-clicking-humans:t3:o1:1
# text = Nothing at all, ever
1	Nothing	nothing	PRON	NN	Number=Sing|PronType=Neg	0	root	_	_
2	at	at	ADP	IN	_	3	case	_	_
3	all	all	DET	DT	PronType=Tot	1	nmod	_	SpaceAfter=No
4	,	,	PUNCT	,	_	5	punct	_	_
5	ever	ever	ADV	RB	PronType=Ind	1	advmod	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 2 · ← Mova's choice {#o2}

<!-- .ven lang=en -->
Your eyes see through your eyelids

```conllu
# sent_id = question:biology:230-echolocation-in-the-sea-and-in-people-dolphins-whales-swiftlets-and-clicking-humans:t3:o2:1
# text = Your eyes see through your eyelids
1	Your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	2	nmod:poss	_	_
2	eyes	eye	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	see	see	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	through	through	ADP	IN	_	6	case	_	_
5	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	6	nmod:poss	_	_
6	eyelids	eyelid	NOUN	NNS	Number=Plur	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **see** | present | Your eyes |  |  | your eyelids |  |  | vn comprehend-87.2-1-1 «NP V»: agent=Experiencer |

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

<!-- .ven lang=en -->
You can often hear when the wall is close

```conllu
# sent_id = question:biology:230-echolocation-in-the-sea-and-in-people-dolphins-whales-swiftlets-and-clicking-humans:t3:o3:1
# text = You can often hear when the wall is close
1	You	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	4	nsubj	_	_
2	can	can	AUX	MD	VerbForm=Fin	4	aux	_	_
3	often	often	ADV	RB	_	4	advmod	_	_
4	hear	hear	VERB	VB	VerbForm=Inf	0	root	_	_
5	when	when	SCONJ	WRB	_	9	mark	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	wall	wall	NOUN	NN	Number=Sing	9	nsubj	_	_
8	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	cop	_	_
9	close	close	ADJ	JJ	Degree=Pos	4	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **hear** | can | You |  |  |  |  | often *property* | vn see-30.1-1-1 «NP V PP.stimulus»: agent=Experiencer |
| 2 | **is** | present | the wall |  |  |  |  | close *property* | tree rules |

### Option 4 {#o4}

<!-- .ven lang=en -->
The wall hums back a tune

```conllu
# sent_id = question:biology:230-echolocation-in-the-sea-and-in-people-dolphins-whales-swiftlets-and-clicking-humans:t3:o4:1
# text = The wall hums back a tune
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	wall	wall	NOUN	NN	Number=Sing	3	nsubj	_	_
3	hums	hum	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	back	back	ADV	RB	_	3	advmod	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	tune	tune	NOUN	NN	Number=Sing	3	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **hum back** | present | the wall | a tune |  |  |  |  | vn manner\_speaking-37.3 «NP V NP»: agent=Agent tune=Topic |

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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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- ↑ back to [Echolocation in the sea and in people: dolphins, whales, swiftlets and clicking humans](https://md.mova.elamur.ai/free/en/corpora/questions/biology/230-echolocation-in-the-sea-and-in-people-dolphins-whales-swiftlets-and-clicking-humans/)