---
title: Rainwater is slightly acidic and slowly dissolves rocks such as lime… — Weathering and erosion · tree and pragmatics
description: Rainwater is slightly acidic and slowly dissolves rocks such as limestone. Who acts: Rainwater. A sentence of the lesson «Weathering and erosion» of the geography course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Weathering and erosion, sentence 9

<!-- .ven lang=en -->
Rainwater is slightly acidic and slowly dissolves rocks such as limestone.

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**Who acts:** Rainwater · **What happens:** be, dissolve · **To what, where:** rocks

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This is a sentence of the lesson «Weathering and erosion» of the geography 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 (Rainwater), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:geography:052-weathering-and-erosion.lesson:9
# text = Rainwater is slightly acidic and slowly dissolves rocks such as limestone.
# source = school lesson (ours)
# course = geography
# lesson = 052-weathering-and-erosion.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	Rainwater	rainwater	NOUN	NN	Number=Sing	4	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
3	slightly	slightly	ADV	RB	_	4	advmod	_	_
4	acidic	acidic	ADJ	JJ	Degree=Pos	0	root	_	_
5	and	and	CCONJ	CC	_	7	cc	_	_
6	slowly	slowly	ADV	RB	_	7	advmod	_	_
7	dissolves	dissolve	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	conj	_	_
8	rocks	rock	NOUN	NNS	Number=Plur	7	obj	_	_
9	such	such	ADJ	JJ	Degree=Pos|ExtPos=ADP	11	case	_	_
10	as	as	ADP	IN	_	9	fixed	_	_
11	limestone	limestone	NOUN	NN	Number=Sing	8	nmod	_	_
12	.	.	PUNCT	.	_	4	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | Rainwater |  |  |  |  | acidic, slightly *property* | tree rules |
| 2 | **dissolve** | present | Rainwater *not said here* | rocks |  |  |  | such limestone; slowly *property* | vn break-45.1 «NP V NP»: agent=Agent rock=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:geography:052-weathering-and-erosion.lesson:9`.

**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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