---
title: Layers of rock can be bent into folds when plates collide. — Sedimentary and metamorphic rocks · tree and pragmatics
description: Layers of rock can be bent into folds when plates collide. Who acts: plates. A sentence of the lesson «Sedimentary and metamorphic rocks» of the geography course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Sedimentary and metamorphic rocks, sentence 15

<!-- .ven lang=en -->
Layers of rock can be bent into folds when plates collide.

<!-- .vintro -->
**Who acts:** plates · **What happens:** bend, collide · **To what, where:** Layers, folds

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This is a sentence of the lesson «Sedimentary and metamorphic rocks» 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 (plates), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:geography:049-sedimentary-and-metamorphic-rocks.lesson:15
# text = Layers of rock can be bent into folds when plates collide.
# source = school lesson (ours)
# course = geography
# lesson = 049-sedimentary-and-metamorphic-rocks.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	Layers	layer	NOUN	NNS	Number=Plur	6	nsubj:pass	_	_
2	of	of	ADP	IN	_	3	case	_	_
3	rock	rock	NOUN	NN	Number=Sing	1	nmod	_	_
4	can	can	AUX	MD	VerbForm=Fin	6	aux	_	_
5	be	be	AUX	VB	VerbForm=Inf	6	aux:pass	_	_
6	bent	bend	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
7	into	into	ADP	IN	_	8	case	_	_
8	folds	fold	NOUN	NNS	Number=Plur	6	obl	_	_
9	when	when	SCONJ	WRB	_	11	mark	_	_
10	plates	plate	NOUN	NNS	Number=Plur	11	nsubj	_	_
11	collide	collide	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	6	advcl	_	_
12	.	.	PUNCT	.	_	6	punct	_	_
```

## Pragmatics {#pragmatics}

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No stored speech act for this sentence.

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **bend** | can · passive |  | Layers of rock |  | folds |  |  | vn knead-26.5 «NP V NP.material PP.product»: subject=Material into fold=Product |
| 2 | **collide** | present | plates |  |  |  |  |  | vn bump-18.4-1 «NP V together»: 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:geography:049-sedimentary-and-metamorphic-rocks.lesson:15`.

**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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