---
title: Mangrove roots break waves and hold the soil, and after the 2004 tsu… — Mangroves: trees in salt water, mudskippers, arc… · tree and pragmatics
description: Mangrove roots break waves and hold the soil, and after the 2004 tsunami, places with mangroves often had less damage. Who acts: Mangrove roots, places. A sentence of the lesson «Mangroves: trees in salt water, mudskippers, archerfish and swimming tigers» of the biology course of Mova's primary scho
---

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# Mangroves: trees in salt water, mudskippers, archerfish and swimming tigers, sentence 12

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Mangrove roots break waves and hold the soil, and after the 2004 tsunami, places with mangroves often had less damage.

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**Who acts:** Mangrove roots, places · **What happens:** break, hold, have · **To what, where:** waves, soil, less damage

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This is a sentence of the lesson «Mangroves: trees in salt water, mudskippers, archerfish and swimming tigers» of the biology 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 (Mangrove roots, places), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers.lesson:12
# text = Mangrove roots break waves and hold the soil, and after the 2004 tsunami, places with mangroves often had less damage.
# source = school lesson (ours)
# course = biology
# lesson = 178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers.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): R8-pos-agree ×1
1	Mangrove	mangrove	NOUN	NN	Number=Sing	2	compound	_	_
2	roots	root	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	break	break	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	waves	wave	NOUN	NNS	Number=Plur	3	obj	_	_
5	and	and	CCONJ	CC	_	6	cc	_	_
6	hold	hold	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	conj	_	Agree=R8-pos-agree|Haiku=3:conj|HaikuPos=VERB:VB:VerbForm=Inf
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	soil	soil	NOUN	NN	Number=Sing	6	obj	_	_
9	,	,	PUNCT	,	_	14	punct	_	_
10	and	and	CCONJ	CC	_	20	cc	_	_
11	after	after	ADP	IN	_	14	case	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
13	2004	2004	NUM	CD	NumForm=Digit|NumType=Card	14	compound	_	_
14	tsunami	tsunami	NOUN	NN	Number=Sing	20	obl	_	_
15	,	,	PUNCT	,	_	16	punct	_	_
16	places	place	NOUN	NNS	Number=Plur	20	nsubj	_	_
17	with	with	ADP	IN	_	18	case	_	_
18	mangroves	mangrove	NOUN	NNS	Number=Plur	16	nmod	_	_
19	often	often	ADV	RB	_	20	advmod	_	_
20	had	have	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	3	conj	_	_
21	less	less	ADJ	JJR	Degree=Cmp	22	amod	_	_
22	damage	damage	NOUN	NN	Number=Sing	20	obj	_	_
23	.	.	PUNCT	.	_	3	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 | **break** | present | Mangrove roots | waves |  |  |  |  | vn hurt-40.8.3-1-1 «NP V NP»: agent=Experiencer wave=Patient |
| 2 | **hold** | present | Mangrove roots *not said here* | the soil |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent soil=Theme |
| 3 | **have** | past | places with mangroves | less damage |  |  | after the 2004 tsunami | often *property* | vn birth-28.2-1 «NP V NP»: agent=Agent damage=Patient |

<!-- .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:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers.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): R8-pos-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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