---
title: Keep sand holes no deeper than your knees and never dig tunnels, bec… — Safe at lakes and beaches · tree and pragmatics
description: Keep sand holes no deeper than your knees and never dig tunnels, because sand collapses and can bury a person. Who acts: you, sand. A sentence of the lesson «Safe at lakes and beaches» of the everyday course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Everyday](https://md.mova.elamur.ai/free/en/corpora/school/everyday/) / [Safe at lakes and beaches](https://md.mova.elamur.ai/free/en/corpora/school/everyday/232-lakes-and-beaches/) / 13

# Safe at lakes and beaches, sentence 13

<!-- .ven lang=en -->
Keep sand holes no deeper than your knees and never dig tunnels, because sand collapses and can bury a person.

<!-- .vintro -->
**Who acts:** you, sand · **What happens:** keep, not dig, collapse, bury · **To what, where:** sand holes, tunnels, person

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This is a sentence of the lesson «Safe at lakes and beaches» 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, sand), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:everyday:232-lakes-and-beaches.lesson:13
# text = Keep sand holes no deeper than your knees and never dig tunnels, because sand collapses and can bury a person.
# source = school lesson (ours)
# course = everyday
# lesson = 232-lakes-and-beaches.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): R7-rel-agree ×1
1	Keep	keep	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	sand	sand	NOUN	NN	Number=Sing	3	compound	_	_
3	holes	hole	NOUN	NNS	Number=Plur	1	obj	_	_
4	no	no	ADV	RB	_	5	advmod	_	Agree=R7-rel-agree|Haiku=5:det|HaikuPos=DET:DT:PronType=Neg
5	deeper	deep	ADJ	JJR	Degree=Cmp	1	xcomp	_	_
6	than	than	ADP	IN	_	8	case	_	_
7	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	8	nmod:poss	_	_
8	knees	knee	NOUN	NNS	Number=Plur	5	obl	_	_
9	and	and	CCONJ	CC	_	11	cc	_	_
10	never	never	ADV	RB	PronType=Neg	11	advmod	_	_
11	dig	dig	VERB	VB	Mood=Imp|VerbForm=Fin	1	conj	_	_
12	tunnels	tunnel	NOUN	NNS	Number=Plur	11	obj	_	_
13	,	,	PUNCT	,	_	16	punct	_	_
14	because	because	SCONJ	IN	_	16	mark	_	_
15	sand	sand	NOUN	NN	Number=Sing	16	nsubj	_	_
16	collapses	collapse	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	1	advcl	_	_
17	and	and	CCONJ	CC	_	19	cc	_	_
18	can	can	AUX	MD	VerbForm=Fin	19	aux	_	_
19	bury	bury	VERB	VB	VerbForm=Inf	16	conj	_	_
20	a	a	DET	DT	Definite=Ind|PronType=Art	21	det	_	_
21	person	person	NOUN	NN	Number=Sing	19	obj	_	_
22	.	.	PUNCT	.	_	1	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- sa -->
- form: command
- act: request
- voice: narrator
- polarity: none
- teacher: kept the draft

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | imperative | you *not said here* | sand holes |  |  |  | deep *property* | vn keep-15.2 «NP V NP»: agent=Agent hole=Theme |
| 2 | **not** **dig** | infinitive | you *not said here* | tunnels |  |  |  |  | vn poke-19-1-1-1 «NP V NP.theme»: agent=Agent tunnel=Theme |
| 3 | **collapse** | present | sand |  |  |  |  |  | vn other\_cos-45.4 «NP.patient V»: agent=Patient |
| 4 | **bury** | can | sand *not said here* | a person |  |  |  |  | vn put-9.1-1 «NP V NP»: agent=Agent person=Theme |

<!-- .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.

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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:232-lakes-and-beaches.lesson:13`.

**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): R7-rel-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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