---
title: Rain is slightly acidic and slowly dissolves limestone, and roots an… — Weathering and erosion · tree and pragmatics
description: Rain is slightly acidic and slowly dissolves limestone, and roots and lichens break rock too. Who acts: Rain, roots. 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 4

<!-- .ven lang=en -->
Rain is slightly acidic and slowly dissolves limestone, and roots and lichens break rock too.

<!-- .vintro -->
**Who acts:** Rain, roots · **What happens:** be, dissolve, break · **To what, where:** limestone, rock

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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 (Rain, roots), 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:4
# text = Rain is slightly acidic and slowly dissolves limestone, and roots and lichens break rock too.
# 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): R3-conj-first ×1
1	Rain	rain	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	limestone	limestone	NOUN	NN	Number=Sing	7	obj	_	_
9	,	,	PUNCT	,	_	14	punct	_	_
10	and	and	CCONJ	CC	_	14	cc	_	_
11	roots	root	NOUN	NNS	Number=Plur	14	nsubj	_	_
12	and	and	CCONJ	CC	_	13	cc	_	_
13	lichens	lichen	NOUN	NNS	Number=Plur	11	conj	_	_
14	break	break	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	conj	_	Agree=R3-conj-first|Haiku=7:conj
15	rock	rock	NOUN	NN	Number=Sing	14	obj	_	_
16	too	too	ADV	RB	_	14	advmod	_	_
17	.	.	PUNCT	.	_	4	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 | **is** | present | Rain |  |  |  |  | acidic, slightly *property* | tree rules |
| 2 | **dissolve** | present | Rain *not said here* | limestone |  |  |  | slowly *property* | vn break-45.1 «NP V NP»: agent=Agent limestone=Patient |
| 3 | **break** | present | roots and lichens | rock |  |  |  |  | vn hurt-40.8.3-1-1 «NP V NP»: agent=Experiencer 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:4`.

**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): R3-conj-first ×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: [Weathering and erosion, 3](https://md.mova.elamur.ai/free/en/corpora/school/geography/52-weathering-and-erosion/3/)
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- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/geography/52-weathering-and-erosion/)