---
title: The 20-20-20 rule: every 20 minutes, look at something 20 feet away… — Posture, screens and resting your eyes · tree and pragmatics
description: The 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds. Who acts: you. A sentence of the lesson «Posture, screens and resting your eyes» of the everyday course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Posture, screens and resting your eyes, sentence 12

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The 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds.

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**Who acts:** you · **What happens:** look

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This is a sentence of the lesson «Posture, screens and resting your eyes» of the everyday course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (you), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:everyday:008-posture-and-screens.lesson:12
# text = The 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds.
# source = school lesson (ours)
# course = everyday
# lesson = 008-posture-and-screens.lesson
# annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R6-punct-agree ×1
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	20-20-20	20-20-20	NUM	CD	NumForm=Digit|NumType=Card	3	nummod	_	_
3	rule	rule	NOUN	NN	Number=Sing	9	dislocated	_	_
4	:	:	PUNCT	:	_	7	punct	_	_
5	every	every	DET	DT	PronType=Tot	7	det	_	_
6	20	20	NUM	CD	NumForm=Digit|NumType=Card	7	nummod	_	_
7	minutes	minute	NOUN	NNS	Number=Plur	9	obl:unmarked	_	_
8	,	,	PUNCT	,	_	7	punct	_	_
9	look	look	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
10	at	at	ADP	IN	_	11	case	_	_
11	something	something	PRON	NN	Number=Sing|PronType=Ind	9	obl	_	_
12	20	20	NUM	CD	NumForm=Digit|NumType=Card	13	nummod	_	_
13	feet	foot	NOUN	NNS	Number=Plur	14	obl:unmarked	_	_
14	away	away	ADV	RB	_	11	advmod	_	_
15	for	for	ADP	IN	_	17	case	_	_
16	20	20	NUM	CD	NumForm=Digit|NumType=Card	17	nummod	_	_
17	seconds	second	NOUN	NNS	Number=Plur	9	obl	_	_
18	.	.	PUNCT	.	_	3	punct	_	Agree=R6-punct-agree|Haiku=9:punct
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **look** | imperative | you *not said here* |  |  |  | minute; second | at something; the 20-20-20 rule *dislocated* | vn peer-30.3 «NP V PP.theme»: agent=Agent at something=Theme |

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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.

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**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:everyday:008-posture-and-screens.lesson:12`.

**The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R6-punct-agree ×1. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/).

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- ← previous: [Posture, screens and resting your eyes, 11](https://md.mova.elamur.ai/free/en/corpora/school/everyday/8-posture-and-screens/11/)
- next →: [Posture, screens and resting your eyes, 13](https://md.mova.elamur.ai/free/en/corpora/school/everyday/8-posture-and-screens/13/)
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