---
title: State the content of the rule known as «20-20-20». — Eyes, backs and thumbs · tree and pragmatics
description: State the content of the rule known as «20-20-20». Exam question 1 of lesson 420 «Eyes, backs and thumbs» of the everyday 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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# Exam question 1 · Eyes, backs and thumbs

<!-- .ven lang=en -->
State the content of the rule known as «20-20-20».

<!-- .vintro -->
**Mova's choice:** option 4 · **The right answer:** option 1 · wrong ✗ · **Who acts:** you · **What happens:** state, know · **To what, where:** content, rule

<!-- .vabout -->
This is exam question 1 of lesson 420 «Eyes, backs and thumbs» of the everyday course of Mova's primary school, asked in stiff, formal language. 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/everyday/420-eyes-backs-and-thumbs/#e1).

## The question {#question}

```conllu
# sent_id = question:everyday:420-eyes-backs-and-thumbs:e1:1
# text = State the content of the rule known as «20-20-20».
1	State	state	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	content	content	NOUN	NN	Number=Sing	1	obj	_	_
4	of	of	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	rule	rule	NOUN	NN	Number=Sing	3	nmod	_	_
7	known	know	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	6	acl	_	_
8	as	as	ADP	IN	_	10	case	_	_
9	«	«	PUNCT	``	_	10	punct	_	SpaceAfter=No
10	20-20-20	20-20-20	NUM	CD	NumForm=Digit|NumType=Card	7	obl	_	SpaceAfter=No
11	»	»	PUNCT	''	_	10	punct	_	SpaceAfter=No
12	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **state** *speech: other* | imperative | you *not said here* | the content of the rule |  |  |  |  | vn say-37.7-1-1 «NP V NP.topic»: agent=Agent content=Topic |
| 2 | **know** | participle |  | the rule *not said here* |  |  |  | as 20-20-20 | vn comprehend-87.2-1-1-1 «NP V NP PP.attribute»: agent=Experiencer as 20-20-20=Attribute |

<!-- .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 · ✓ the right answer {#o1}

<!-- .ven lang=en -->
At intervals of twenty minutes, an object some twenty feet distant is regarded for twenty seconds

<!-- fold The tree, 16 words -->
```conllu
# sent_id = question:everyday:420-eyes-backs-and-thumbs:e1:o1:1
# text = At intervals of twenty minutes, an object some twenty feet distant is regarded for twenty seconds
1	At	at	ADP	IN	_	2	case	_	_
2	intervals	interval	NOUN	NNS	Number=Plur	14	obl	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	5	nummod	_	_
5	minutes	minute	NOUN	NNS	Number=Plur	2	nmod	_	SpaceAfter=No
6	,	,	PUNCT	,	_	8	punct	_	_
7	an	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	object	object	NOUN	NN	Number=Sing	14	nsubj:pass	_	_
9	some	some	DET	DT	PronType=Ind	11	det	_	_
10	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	11	nummod	_	_
11	feet	foot	NOUN	NNS	Number=Plur	12	obl:unmarked	_	_
12	distant	distant	ADJ	JJ	Degree=Pos	8	acl:relcl	_	_
13	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	aux:pass	_	_
14	regarded	regard	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
15	for	for	ADP	IN	_	17	case	_	_
16	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	17	nummod	_	_
17	seconds	second	NOUN	NNS	Number=Plur	14	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **regard** | present · passive |  | a object |  | intervals of twenty minutes | second |  | vn assessment-34.1 «NP V NP»: subject=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
At intervals of twenty seconds, the eyes are closed for twenty minutes

```conllu
# sent_id = question:everyday:420-eyes-backs-and-thumbs:e1:o2:1
# text = At intervals of twenty seconds, the eyes are closed for twenty minutes
1	At	at	ADP	IN	_	2	case	_	_
2	intervals	interval	NOUN	NNS	Number=Plur	10	obl	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	5	nummod	_	_
5	seconds	second	NOUN	NNS	Number=Plur	2	nmod	_	SpaceAfter=No
6	,	,	PUNCT	,	_	2	punct	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	eyes	eye	NOUN	NNS	Number=Plur	10	nsubj:pass	_	_
9	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	10	aux:pass	_	_
10	closed	close	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
11	for	for	ADP	IN	_	13	case	_	_
12	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	13	nummod	_	_
13	minutes	minute	NOUN	NNS	Number=Plur	10	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **close** | present · passive |  | the eyes |  | intervals of twenty seconds | minute |  | vn crane-40.3.2 «NP V NP»: subject=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
Play is restricted to twenty minutes on twenty days

```conllu
# sent_id = question:everyday:420-eyes-backs-and-thumbs:e1:o3:1
# text = Play is restricted to twenty minutes on twenty days
1	Play	play	NOUN	NN	Number=Sing	3	nsubj:pass	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	restricted	restrict	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	to	to	ADP	IN	_	6	case	_	_
5	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	6	nummod	_	_
6	minutes	minute	NOUN	NNS	Number=Plur	3	obl	_	_
7	on	on	ADP	IN	_	9	case	_	_
8	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	9	nummod	_	_
9	days	day	NOUN	NNS	Number=Plur	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **restrict** | present · passive |  | Play |  |  | day; minute |  | vn limit-76 «NP V NP»: subject=Patient |

### Option 4 · ← Mova's choice {#o4}

<!-- .ven lang=en -->
The screen is placed at a distance of twenty inches for twenty games

```conllu
# sent_id = question:everyday:420-eyes-backs-and-thumbs:e1:o4:1
# text = The screen is placed at a distance of twenty inches for twenty games
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	screen	screen	NOUN	NN	Number=Sing	4	nsubj:pass	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
4	placed	place	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	at	at	ADP	IN	_	7	case	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
7	distance	distance	NOUN	NN	Number=Sing	4	obl	_	_
8	of	of	ADP	IN	_	10	case	_	_
9	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	10	nummod	_	_
10	inches	inch	NOUN	NNS	Number=Plur	7	nmod	_	_
11	for	for	ADP	IN	_	13	case	_	_
12	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	13	nummod	_	_
13	games	game	NOUN	NNS	Number=Plur	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **place** | present · passive |  | the screen |  |  |  | at a distance of twenty inches; for twenty games | vn put-9.1-2 «NP V NP PP.destination»: subject=Theme at distance=Destination |

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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: [Eyes, backs and thumbs, test 11](https://md.mova.elamur.ai/free/en/corpora/questions/everyday/420-eyes-backs-and-thumbs/t11/)
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