---
title: Trace fossils are marks animals left behind, such as footprints, bur… — Fossils: how a living thing turns to stone and h… · tree and pragmatics
description: Trace fossils are marks animals left behind, such as footprints, burrows, tooth marks, nests, eggs and fossil poo; they show how animals walked, hid and lived. Who acts: Trace fossils, animals, bodies. A sentence of the lesson «Fossils: how a living thing turns to stone and how we dig it up» of the 
---

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# Fossils: how a living thing turns to stone and how we dig it up, sentence 10

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Trace fossils are marks animals left behind, such as footprints, burrows, tooth marks, nests, eggs and fossil poo; they show how animals walked, hid and lived.

<!-- .vintro -->
**Who acts:** Trace fossils, animals, bodies · **What happens:** be, leave behind, show, walk, hide, live · **To what, where:** marks · **Speech:** someone speaks here

<!-- .vabout -->
This is a sentence of the lesson «Fossils: how a living thing turns to stone and how we dig it up» 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 (Trace fossils, animals, bodies), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:275-fossils-how-a-living-thing-turns-to-stone-and-how-we-dig-it-up.lesson:10
# text = Trace fossils are marks animals left behind, such as footprints, burrows, tooth marks, nests, eggs and fossil poo; they show how animals walked, hid and lived.
# source = school lesson (ours)
# course = biology
# lesson = 275-fossils-how-a-living-thing-turns-to-stone-and-how-we-dig-it-up.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): R1-cc-next ×2, R2-punct-next ×1, R3-conj-first ×1
1	Trace	trace	NOUN	NN	Number=Sing	2	compound	_	_
2	fossils	fossil	NOUN	NNS	Number=Plur	4	nsubj	_	_
3	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
4	marks	mark	NOUN	NNS	Number=Plur	0	root	_	_
5	animals	animal	NOUN	NNS	Number=Plur	6	nsubj	_	_
6	left	leave	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	acl	_	_
7	behind	behind	ADV	RB	_	6	advmod	_	_
8	,	,	PUNCT	,	_	11	punct	_	_
9	such	such	ADJ	JJ	Degree=Pos|ExtPos=ADP	11	case	_	_
10	as	as	ADP	IN	_	9	fixed	_	_
11	footprints	footprint	NOUN	NNS	Number=Plur	5	appos	_	_
12	,	,	PUNCT	,	_	13	punct	_	_
13	burrows	burrow	NOUN	NNS	Number=Plur	11	conj	_	_
14	,	,	PUNCT	,	_	16	punct	_	_
15	tooth	tooth	NOUN	NN	Number=Sing	16	compound	_	_
16	marks	mark	NOUN	NNS	Number=Plur	11	conj	_	_
17	,	,	PUNCT	,	_	18	punct	_	_
18	nests	nest	NOUN	NNS	Number=Plur	11	conj	_	_
19	,	,	PUNCT	,	_	20	punct	_	_
20	eggs	egg	NOUN	NNS	Number=Plur	11	conj	_	_
21	and	and	CCONJ	CC	_	23	cc	_	Agree=R1-cc-next|Haiku=11:cc
22	fossil	fossil	NOUN	NN	Number=Sing	23	compound	_	_
23	poo	poo	NOUN	NN	Number=Sing	11	conj	_	_
24	;	;	PUNCT	,	_	26	punct	_	_
25	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	26	nsubj	_	_
26	show	show	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	parataxis	_	_
27	how	how	ADV	WRB	PronType=Int	29	advmod	_	_
28	animals	animal	NOUN	NNS	Number=Plur	29	nsubj	_	_
29	walked	walk	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	26	ccomp	_	_
30	,	,	PUNCT	,	_	31	punct	_	Agree=R2-punct-next|Haiku=29:punct
31	hid	hide	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	29	conj	_	_
32	and	and	CCONJ	CC	_	33	cc	_	Agree=R1-cc-next|Haiku=31:cc
33	lived	live	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	29	conj	_	Agree=R3-conj-first|Haiku=31:conj
34	.	.	PUNCT	.	_	4	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 | **is a** | present | Trace fossils | marks |  |  |  |  | tree rules |
| 2 | **leave behind** | participle | animals | marks *not said here* |  |  |  | behind *property* | vn keep-15.2 «NP V NP»: agent=Agent mark=Theme |
| 3 | **show** | present | bodies *= body* |  |  |  |  |  | vn transfer\_mesg-37.1.1-1-1 «NP V how S»: agent=Agent clause=Topic |
| 4 | **walk** | past | animals |  |  |  |  |  | vn run-51.3.2-2-1 «NP V»: agent=Theme |
| 5 | **hide** | past | animals *not said here* |  |  |  |  |  | vn concealment-16-1 «NP V»: agent=Agent |
| 6 | **live** | past | animals *not said here* |  |  |  |  |  | vn exist-47.1-1 «NP V»: 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:biology:275-fossils-how-a-living-thing-turns-to-stone-and-how-we-dig-it-up.lesson:10`.

**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): R1-cc-next ×2, R2-punct-next ×1, 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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