---
title: Which of the following statements most accurately characterises the… — Posture, screens and resting your eyes · tree and pragmatics
description: Which of the following statements most accurately characterises the 20-20-20 rule? Exam question 1 of lesson 8 «Posture, screens and resting your eyes» 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 · Posture, screens and resting your eyes

<!-- .ven lang=en -->
Which of the following statements most accurately characterises the 20-20-20 rule?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **What happens:** follow, characteris · **To what, where:** 20-20-20 rule

<!-- .vabout -->
This is exam question 1 of lesson 8 «Posture, screens and resting your eyes» 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/8-posture-and-screens/#e1).

## The question {#question}

```conllu
# sent_id = question:everyday:8-posture-and-screens:e1:1
# text = Which of the following statements most accurately characterises the 20-20-20 rule?
1	Which	which	PRON	WDT	PronType=Rel	8	nsubj	_	_
2	of	of	ADP	IN	_	5	case	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	following	follow	VERB	VBG	VerbForm=Ger	5	amod	_	_
5	statements	statement	NOUN	NNS	Number=Plur	8	obl	_	_
6	most	most	ADV	RBS	Degree=Sup	7	advmod	_	_
7	accurately	accurately	ADV	RB	_	8	advmod	_	_
8	characterises	characteris	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
10	20-20-20	20-20-20	NUM	CD	NumForm=Digit|NumType=Card	11	nummod	_	_
11	rule	rule	NOUN	NN	Number=Sing	8	obj	_	SpaceAfter=No
12	?	?	PUNCT	.	_	8	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **follow** | gerund |  |  |  |  |  |  | vn occur-48.3-1 «NP V»: agent=Theme |
| 2 | **characteris** | present |  | the 20-20-20 rule |  |  |  | of the following statements; accurately *property* | tree rules |

<!-- .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 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
The screen is to be placed twenty centimetres from the eyes

```conllu
# sent_id = question:everyday:8-posture-and-screens:e1:o1:1
# text = The screen is to be placed twenty centimetres from the eyes
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	screen	screen	NOUN	NN	Number=Sing	6	nsubj:pass	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	aux:pass	_	_
4	to	to	PART	TO	_	6	mark	_	_
5	be	be	AUX	VB	VerbForm=Inf	6	aux:pass	_	_
6	placed	place	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
7	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	8	nummod	_	_
8	centimetres	centimetre	NOUN	NNS	Number=Plur	6	obj	_	_
9	from	from	ADP	IN	_	11	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	eyes	eye	NOUN	NNS	Number=Plur	6	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **place** | present · passive |  | the screen |  | the eyes |  |  | vn put-9.1-2 «NP V NP ADVP»: subject=Theme centimetre=Destination |

### Option 2 {#o2}

<!-- .ven lang=en -->
Twenty minutes of reading are to be followed by twenty hours of rest

```conllu
# sent_id = question:everyday:8-posture-and-screens:e1:o2:1
# text = Twenty minutes of reading are to be followed by twenty hours of rest
1	Twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	minutes	minute	NOUN	NNS	Number=Plur	8	nsubj:pass	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	reading	reading	NOUN	NN	Number=Sing	2	nmod	_	_
5	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	8	aux:pass	_	_
6	to	to	PART	TO	_	8	mark	_	_
7	be	be	AUX	VB	VerbForm=Inf	8	aux:pass	_	_
8	followed	follow	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
9	by	by	ADP	IN	_	11	case	_	_
10	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	11	nummod	_	_
11	hours	hour	NOUN	NNS	Number=Plur	8	obl	_	_
12	of	of	ADP	IN	_	13	case	_	_
13	rest	rest	NOUN	NN	Number=Sing	11	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **follow** | present · passive |  | Twenty minutes of reading |  |  | hour |  | vn chase-51.6 «NP V NP»: subject=Theme |

### Option 3 {#o3}

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

<!-- fold The tree, 14 words -->
```conllu
# sent_id = question:everyday:8-posture-and-screens:e1:o3:1
# text = At intervals of twenty seconds, the eyes are to be closed for twenty minutes
1	At	at	ADP	IN	_	2	case	_	_
2	intervals	interval	NOUN	NNS	Number=Plur	12	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	12	nsubj:pass	_	_
9	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	12	aux:pass	_	_
10	to	to	PART	TO	_	12	mark	_	_
11	be	be	AUX	VB	VerbForm=Inf	12	aux:pass	_	_
12	closed	close	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
13	for	for	ADP	IN	_	15	case	_	_
14	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	15	nummod	_	_
15	minutes	minute	NOUN	NNS	Number=Plur	12	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 4 · ✓ the right answer {#o4}

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

<!-- fold The tree, 17 words -->
```conllu
# sent_id = question:everyday:8-posture-and-screens:e1:o4:1
# text = At intervals of twenty minutes, an object twenty feet distant is to be regarded for twenty seconds
1	At	at	ADP	IN	_	2	case	_	_
2	intervals	interval	NOUN	NNS	Number=Plur	15	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	,	_	2	punct	_	_
7	an	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	object	object	NOUN	NN	Number=Sing	15	nsubj:pass	_	_
9	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	10	nummod	_	_
10	feet	foot	NOUN	NNS	Number=Plur	11	obl:unmarked	_	_
11	distant	distant	ADJ	JJ	Degree=Pos	8	amod	_	_
12	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	15	aux	_	_
13	to	to	PART	TO	_	15	mark	_	_
14	be	be	AUX	VB	VerbForm=Inf	15	aux:pass	_	_
15	regarded	regard	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
16	for	for	ADP	IN	_	18	case	_	_
17	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	18	nummod	_	_
18	seconds	second	NOUN	NNS	Number=Plur	15	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 |

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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: [Posture, screens and resting your eyes, test 19](https://md.mova.elamur.ai/free/en/corpora/questions/everyday/8-posture-and-screens/t19/)
- next →: [Posture, screens and resting your eyes, exam 2](https://md.mova.elamur.ai/free/en/corpora/questions/everyday/8-posture-and-screens/e2/)
- ↑ back to [Posture, screens and resting your eyes](https://md.mova.elamur.ai/free/en/corpora/questions/everyday/8-posture-and-screens/)