---
title: Most fossils form when a dead plant or animal is quickly buried in m… — Rocks, minerals and fossils · tree and pragmatics
description: Most fossils form when a dead plant or animal is quickly buried in mud or sand; its hard parts are slowly replaced by minerals and turn to stone, so fossils are found mostly in sedimentary rock. Who acts: Most fossils, minerals. A sentence of the lesson «Rocks, minerals and fossils» of the world cou
---

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# Rocks, minerals and fossils, sentence 5

<!-- .ven lang=en -->
Most fossils form when a dead plant or animal is quickly buried in mud or sand; its hard parts are slowly replaced by minerals and turn to stone, so fossils are found mostly in sedimentary rock.

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**Who acts:** Most fossils, minerals · **What happens:** form, bury, replace, turn, find · **To what, where:** dead plant, mud, hard parts, stone, fossils, sedimentary rock

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This is a sentence of the lesson «Rocks, minerals and fossils» of the world 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 (Most fossils, minerals), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:061-rocks-minerals-fossils.lesson:5
# text = Most fossils form when a dead plant or animal is quickly buried in mud or sand; its hard parts are slowly replaced by minerals and turn to stone, so fossils are found mostly in sedimentary rock.
# source = school lesson (ours)
# course = world
# lesson = 061-rocks-minerals-fossils.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): R7-rel-agree ×2, R8-pos-agree ×1
1	Most	most	ADJ	JJS	Degree=Sup	2	amod	_	_
2	fossils	fossil	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	form	form	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	when	when	ADV	WRB	PronType=Int	12	advmod	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
6	dead	dead	ADJ	JJ	Degree=Pos	7	amod	_	_
7	plant	plant	NOUN	NN	Number=Sing	12	nsubj:pass	_	_
8	or	or	CCONJ	CC	_	9	cc	_	_
9	animal	animal	NOUN	NN	Number=Sing	7	conj	_	_
10	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	12	aux:pass	_	_
11	quickly	quickly	ADV	RB	_	12	advmod	_	_
12	buried	bury	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	advcl	_	_
13	in	in	ADP	IN	_	14	case	_	_
14	mud	mud	NOUN	NN	Number=Sing	12	obl	_	_
15	or	or	CCONJ	CC	_	16	cc	_	_
16	sand	sand	NOUN	NN	Number=Sing	14	conj	_	_
17	;	;	PUNCT	,	_	23	punct	_	_
18	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	20	nmod:poss	_	_
19	hard	hard	ADJ	JJ	Degree=Pos	20	amod	_	_
20	parts	part	NOUN	NNS	Number=Plur	23	nsubj:pass	_	_
21	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	23	aux:pass	_	_
22	slowly	slowly	ADV	RB	_	23	advmod	_	_
23	replaced	replace	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	parataxis	_	_
24	by	by	ADP	IN	_	25	case	_	_
25	minerals	mineral	NOUN	NNS	Number=Plur	23	obl	_	_
26	and	and	CCONJ	CC	_	27	cc	_	_
27	turn	turn	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	23	conj	_	Agree=R8-pos-agree|Haiku=23:conj|HaikuPos=VERB:VB:VerbForm=Inf
28	to	to	ADP	IN	_	29	case	_	_
29	stone	stone	NOUN	NN	Number=Sing	27	obl	_	_
30	,	,	PUNCT	,	_	34	punct	_	_
31	so	so	ADV	RB	_	34	advmod	_	_
32	fossils	fossil	NOUN	NNS	Number=Plur	34	nsubj	_	_
33	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	34	aux:pass	_	_
34	found	find	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	23	parataxis	_	Agree=R7-rel-agree|Haiku=23:conj
35	mostly	mostly	ADV	RB	_	38	advmod	_	_
36	in	in	ADP	IN	_	38	case	_	_
37	sedimentary	sedimentary	ADJ	JJ	Degree=Pos	38	amod	_	_
38	rock	rock	NOUN	NN	Number=Sing	34	obl	_	Agree=R7-rel-agree|Haiku=34:obj
39	.	.	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 | **form** | present | Most fossils |  |  |  |  |  | vn appear-48.1.1 «NP V»: agent=Theme |
| 2 | **bury** | present · passive |  | a dead plant or animal |  | mud or sand |  | quickly *property* | vn put-9.1-1 «NP V NP PP.destination»: subject=Theme in mud=Destination |
| 3 | **replace** | present · passive | minerals | fossil's hard parts |  |  |  | slowly *property* | vn substitute-13.6.2-1 «NP V NP»: agent=Theme subject=Co-Theme |
| 4 | **turn** | present | minerals *not said here* |  |  | stone |  |  | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme to stone=Trajectory |
| 5 | **find** | present · passive |  | fossils |  | sedimentary rock |  |  | vn discover-84 «NP V NP»: subject=Topic |

<!-- .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:world:061-rocks-minerals-fossils.lesson:5`.

**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): R7-rel-agree ×2, 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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