---
title: A snail in a 10-metre well that climbs 3 metres each day and slips b… — Olympiad: everyday reasoning ★★★ · tree and pragmatics
description: A snail in a 10-metre well that climbs 3 metres each day and slips back 2 metres each night gets out on day 8, because on the last day it doesn't slip back. Who acts: metre well, snail. A sentence of the lesson «Olympiad: everyday reasoning ★★★» of the world course of Mova's primary school with its 
---

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# Olympiad: everyday reasoning ★★★, sentence 12

<!-- .ven lang=en -->
A snail in a 10-metre well that climbs 3 metres each day and slips back 2 metres each night gets out on day 8, because on the last day it doesn't slip back.

<!-- .vintro -->
**Who acts:** metre well, snail · **What happens:** climb, slip back, get out, not slip back · **To what, where:** 3 metres, 2 metres

<!-- .vabout -->
This is a sentence of the lesson «Olympiad: everyday reasoning ★★★» of the world 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 (metre well, snail), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:194-olympiad-everyday-reasoning.lesson:12
# text = A snail in a 10-metre well that climbs 3 metres each day and slips back 2 metres each night gets out on day 8, because on the last day it doesn't slip back.
# source = school lesson (ours)
# course = world
# lesson = 194-olympiad-everyday-reasoning.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): R5-strong ×1, R7-rel-agree ×1
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	snail	snail	NOUN	NN	Number=Sing	22	nsubj	_	_
3	in	in	ADP	IN	_	8	case	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
5	10	10	NUM	CD	NumForm=Digit|NumType=Card	7	nummod	_	_
6	-	-	PUNCT	HYPH	_	5	punct	_	_
7	metre	metre	NOUN	NN	Number=Sing	8	compound	_	_
8	well	well	NOUN	NN	Number=Sing	2	nmod	_	_
9	that	that	PRON	WDT	PronType=Rel	10	nsubj	_	_
10	climbs	climb	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	acl:relcl	_	_
11	3	3	NUM	CD	NumForm=Digit|NumType=Card	12	nummod	_	_
12	metres	metre	NOUN	NNS	Number=Plur	10	obj	_	_
13	each	each	DET	DT	PronType=Tot	14	det	_	_
14	day	day	NOUN	NN	Number=Sing	10	obl:unmarked	_	_
15	and	and	CCONJ	CC	_	16	cc	_	_
16	slips	slip	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	10	conj	_	_
17	back	back	ADV	RB	_	16	advmod	_	Agree=R5-strong|Haiku=18:advmod
18	2	2	NUM	CD	NumForm=Digit|NumType=Card	19	nummod	_	_
19	metres	metre	NOUN	NNS	Number=Plur	16	obl	_	Agree=R7-rel-agree|Haiku=16:obj
20	each	each	DET	DT	PronType=Tot	21	det	_	_
21	night	night	NOUN	NN	Number=Sing	16	obl:unmarked	_	_
22	gets	get	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
23	out	out	ADP	RP	_	22	compound:prt	_	_
24	on	on	ADP	IN	_	25	case	_	_
25	day	day	NOUN	NN	Number=Sing	22	obl	_	_
26	8	8	NUM	CD	NumForm=Digit|NumType=Card	25	flat	_	_
27	,	,	PUNCT	,	_	36	punct	_	_
28	because	because	SCONJ	IN	_	36	mark	_	_
29	on	on	ADP	IN	_	32	case	_	_
30	the	the	DET	DT	Definite=Def|PronType=Art	32	det	_	_
31	last	last	ADJ	JJ	Degree=Pos	32	amod	_	_
32	day	day	NOUN	NN	Number=Sing	36	obl	_	_
33	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	36	nsubj	_	_
34	does	do	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	36	aux	_	_
35	n't	not	PART	RB	Polarity=Neg	36	advmod	_	_
36	slip	slip	VERB	VB	VerbForm=Inf	22	advcl	_	_
37	back	back	ADV	RB	_	36	advmod	_	_
38	.	.	PUNCT	.	_	22	punct	_	_
```

## Pragmatics {#pragmatics}

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

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **climb** | present | a metre well | 3 metres |  |  | day |  | vn run-51.3.2 «PP.location V NP»: agent=Initial\_Location metre=Theme |
| 2 | **slip back** | present | a metre well *not said here* | 2 metres |  |  | night |  | vn calibratable\_cos-45.6.1-1 «NP.attribute V»: agent=Attribute |
| 3 | **get out** | present | a snail in a metre well |  |  |  | day |  | vn withdraw-82-1 «NP V»: agent=Agent |
| 4 | **not** **slip back** | present · do-support | snail |  |  |  | day |  | vn calibratable\_cos-45.6.1-1 «NP.attribute V»: agent=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.

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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:world:194-olympiad-everyday-reasoning.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): R5-strong ×1, 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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- ← previous: [Olympiad: everyday reasoning ★★★, 11](https://md.mova.elamur.ai/free/en/corpora/school/world/194-olympiad-everyday-reasoning/11/)
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