---
title: Under a sink, a U-bend holds a little water that blocks smells from… — Heating, water pipes and drains · tree and pragmatics
description: Under a sink, a U-bend holds a little water that blocks smells from the drain coming back up. Who acts: U bend, little water, drain. A sentence of the lesson «Heating, water pipes and drains» of the technology course of Mova's primary school with its dependency tree and the pragmatics of every claus
---

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# Heating, water pipes and drains, sentence 12

<!-- .ven lang=en -->
Under a sink, a U-bend holds a little water that blocks smells from the drain coming back up.

<!-- .vintro -->
**Who acts:** U bend, little water, drain · **What happens:** hold, block, come back · **To what, where:** little water, sink, smells, drain

<!-- .vabout -->
This is a sentence of the lesson «Heating, water pipes and drains» of the technology 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 (U bend, little water, drain), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:technology:013-heating-water-pipes-and-drains.lesson:12
# text = Under a sink, a U-bend holds a little water that blocks smells from the drain coming back up.
# source = school lesson (ours)
# course = technology
# lesson = 013-heating-water-pipes-and-drains.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): no change
1	Under	under	ADP	IN	_	3	case	_	_
2	a	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
3	sink	sink	NOUN	NN	Number=Sing	9	obl	_	_
4	,	,	PUNCT	,	_	3	punct	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
6	U	U	PROPN	NNP	Number=Sing	8	compound	_	_
7	-	-	PUNCT	HYPH	_	6	punct	_	_
8	bend	bend	NOUN	NN	Number=Sing	9	nsubj	_	_
9	holds	hold	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
11	little	little	ADJ	JJ	Degree=Pos	12	amod	_	_
12	water	water	NOUN	NN	Number=Sing	9	obj	_	_
13	that	that	PRON	WDT	PronType=Rel	14	nsubj	_	_
14	blocks	block	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	12	acl:relcl	_	_
15	smells	smell	NOUN	NNS	Number=Plur	14	obj	_	_
16	from	from	ADP	IN	_	18	case	_	_
17	the	the	DET	DT	Definite=Def|PronType=Art	18	det	_	_
18	drain	drain	NOUN	NN	Number=Sing	14	obl	_	_
19	coming	come	VERB	VBG	VerbForm=Ger	18	acl	_	_
20	back	back	ADV	RB	_	21	advmod	_	_
21	up	up	ADV	RB	_	19	advmod	_	_
22	.	.	PUNCT	.	_	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 | **hold** | present | a U bend | a little water |  | a sink |  |  | vn keep-15.2 «NP V NP PP.location»: agent=Agent water=Theme under sink=Location |
| 2 | **block** | present | a little water | smells |  | the drain |  |  | vn forbid-64.4-1 «NP V NP PP.theme»: agent=Causer smell=Beneficiary from drain=Eventuality |
| 3 | **come back** | gerund | the drain *not said here* |  |  |  |  |  | vn escape-51.1-1 «NP V»: agent=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:technology:013-heating-water-pipes-and-drains.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): no change. **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: [Heating, water pipes and drains, 11](https://md.mova.elamur.ai/free/en/corpora/school/technology/13-heating-water-pipes-and-drains/11/)
- next →: [Heating, water pipes and drains, 13](https://md.mova.elamur.ai/free/en/corpora/school/technology/13-heating-water-pipes-and-drains/13/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/technology/13-heating-water-pipes-and-drains/)