---
title: Wolves were killed out of Yellowstone by the 1920s, and 31 wolves we… — Wolves in Yellowstone, beavers in Britain and br… · tree and pragmatics
description: Wolves were killed out of Yellowstone by the 1920s, and 31 wolves were brought back from Canada in 1995 and 1996; without wolves, elk ate young trees along the rivers, and with wolves back, elk moved more and some trees could grow again. Who acts: 1920s, elk, trees. A sentence of the lesson «Wolves 
---

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# Wolves in Yellowstone, beavers in Britain and bringing nature back, sentence 5

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Wolves were killed out of Yellowstone by the 1920s, and 31 wolves were brought back from Canada in 1995 and 1996; without wolves, elk ate young trees along the rivers, and with wolves back, elk moved more and some trees could grow again.

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**Who acts:** 1920s, elk, trees · **What happens:** kill, bring back, eat, move, grow · **To what, where:** Wolves, Yellowstone, 31 wolves, Canada, young trees

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This is a sentence of the lesson «Wolves in Yellowstone, beavers in Britain and bringing nature back» 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 (1920s, elk, trees), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back.lesson:5
# text = Wolves were killed out of Yellowstone by the 1920s, and 31 wolves were brought back from Canada in 1995 and 1996; without wolves, elk ate young trees along the rivers, and with wolves back, elk moved more and some trees could grow again.
# source = school lesson (ours)
# course = biology
# lesson = 283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back.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 ×4
1	Wolves	wolf	NOUN	NNS	Number=Plur	3	nsubj:pass	_	_
2	were	be	AUX	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	3	aux:pass	_	_
3	killed	kill	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	out	out	ADP	IN	_	6	case	_	_
5	of	of	ADP	IN	_	6	case	_	_
6	Yellowstone	Yellowstone	PROPN	NNP	Number=Sing	3	obl	_	_
7	by	by	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	1920s	1920s	NOUN	NNS	Number=Ptan|NumForm=Combi|NumType=Card	3	obl	_	_
10	,	,	PUNCT	,	_	15	punct	_	_
11	and	and	CCONJ	CC	_	15	cc	_	Agree=R1-cc-next|Haiku=3:cc
12	31	31	NUM	CD	NumForm=Digit|NumType=Card	13	nummod	_	_
13	wolves	wolf	NOUN	NNS	Number=Plur	15	nsubj:pass	_	_
14	were	be	AUX	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	15	aux:pass	_	_
15	brought	bring	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	conj	_	_
16	back	back	ADV	RB	_	15	advmod	_	_
17	from	from	ADP	IN	_	18	case	_	_
18	Canada	Canada	PROPN	NNP	Number=Sing	15	obl	_	_
19	in	in	ADP	IN	_	20	case	_	_
20	1995	1995	NUM	CD	NumForm=Digit|NumType=Card	15	obl	_	_
21	and	and	CCONJ	CC	_	22	cc	_	Agree=R1-cc-next|Haiku=20:cc
22	1996	1996	NUM	CD	NumForm=Digit|NumType=Card	20	conj	_	_
23	;	;	PUNCT	:	_	28	punct	_	_
24	without	without	ADP	IN	_	25	case	_	_
25	wolves	wolf	NOUN	NNS	Number=Plur	28	obl	_	_
26	,	,	PUNCT	,	_	25	punct	_	_
27	elk	elk	NOUN	NNS	Number=Plur	28	nsubj	_	_
28	ate	eat	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	3	parataxis	_	_
29	young	young	ADJ	JJ	Degree=Pos	30	amod	_	_
30	trees	tree	NOUN	NNS	Number=Plur	28	obj	_	_
31	along	along	ADP	IN	_	33	case	_	_
32	the	the	DET	DT	Definite=Def|PronType=Art	33	det	_	_
33	rivers	river	NOUN	NNS	Number=Plur	28	obl	_	_
34	,	,	PUNCT	,	_	42	punct	_	_
35	and	and	CCONJ	CC	_	41	cc	_	Agree=R1-cc-next|Haiku=28:cc
36	with	with	ADP	IN	_	37	case	_	_
37	wolves	wolf	NOUN	NNS	Number=Plur	41	obl	_	_
38	back	back	ADV	RB	_	37	advmod	_	_
39	,	,	PUNCT	,	_	37	punct	_	_
40	elk	elk	NOUN	NNS	Number=Plur	41	nsubj	_	_
41	moved	move	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	28	conj	_	_
42	more	more	ADV	RBR	Degree=Cmp	41	advmod	_	_
43	and	and	CCONJ	CC	_	47	cc	_	Agree=R1-cc-next|Haiku=41:cc
44	some	some	DET	DT	PronType=Ind	45	det	_	_
45	trees	tree	NOUN	NNS	Number=Plur	47	nsubj	_	_
46	could	could	AUX	MD	VerbForm=Fin	47	aux	_	_
47	grow	grow	VERB	VB	VerbForm=Inf	41	conj	_	_
48	again	again	ADV	RB	_	47	advmod	_	_
49	.	.	PUNCT	.	_	3	punct	_	_
```

## Pragmatics {#pragmatics}

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- 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 | **kill** | past · passive | the 1920s | Wolves |  | Yellowstone |  |  | vn remove-10.1 «NP V NP PP»: agent=Agent subject=Theme out yellowstone=Initial\_Location |
| 2 | **bring back** | past · passive |  | 31 wolves |  | Canada |  | in 1995 | vn bring-11.3-1 «NP V NP PP.initial\_location»: subject=Theme from canada=Initial\_Location |
| 3 | **eat** | past | elk | young trees |  |  |  | without wolves; along the rivers | vn eat-39.1-1 «NP V NP»: agent=Agent tree=Patient |
| 4 | **move** | past | elk |  |  |  |  | with wolves | vn roll-51.3.1 «NP.theme V»: agent=Theme |
| 5 | **grow** | could | some trees |  |  |  | again |  | vn appear-48.1.1 «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:283-wolves-in-yellowstone-beavers-in-britain-and-bringing-nature-back.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): R1-cc-next ×4. **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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