---
title: Beavers fell trees with their teeth and build dams to make deep pond… — Rivers, lakes and ponds · tree and pragmatics
description: Beavers fell trees with their teeth and build dams to make deep ponds that protect their lodge and do not freeze to the bottom; their orange front teeth contain iron, which makes them extra hard, and never stop growing. Who acts: Beavers, deep ponds, orange front teeth, iron. A sentence of the lesso
---

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# Rivers, lakes and ponds, sentence 11

<!-- .ven lang=en -->
Beavers fell trees with their teeth and build dams to make deep ponds that protect their lodge and do not freeze to the bottom; their orange front teeth contain iron, which makes them extra hard, and never stop growing.

<!-- .vintro -->
**Who acts:** Beavers, deep ponds, orange front teeth, iron · **What happens:** fall, build, make, protect, not freeze, contain · **To what, where:** trees, dams, deep ponds, lodge, iron, ponds

<!-- .vabout -->
This is a sentence of the lesson «Rivers, lakes and ponds» 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 (Beavers, deep ponds, orange front teeth, iron), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:010-rivers-lakes-and-ponds.lesson:11
# text = Beavers fell trees with their teeth and build dams to make deep ponds that protect their lodge and do not freeze to the bottom; their orange front teeth contain iron, which makes them extra hard, and never stop growing.
# source = school lesson (ours)
# course = biology
# lesson = 010-rivers-lakes-and-ponds.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 ×1, R8-pos-agree ×1
1	Beavers	beaver	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	fell	fall	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
3	trees	tree	NOUN	NNS	Number=Plur	2	obj	_	_
4	with	with	ADP	IN	_	6	case	_	_
5	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	6	nmod:poss	_	_
6	teeth	tooth	NOUN	NNS	Number=Plur	2	obl	_	_
7	and	and	CCONJ	CC	_	9	cc	_	_
8	build	build	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
9	dams	dam	NOUN	NNS	Number=Plur	8	obj	_	_
10	to	to	PART	TO	_	11	mark	_	_
11	make	make	VERB	VB	VerbForm=Inf	8	advcl	_	_
12	deep	deep	ADJ	JJ	Degree=Pos	13	amod	_	_
13	ponds	pond	NOUN	NNS	Number=Plur	11	obj	_	_
14	that	that	PRON	WDT	PronType=Rel	15	nsubj	_	_
15	protect	protect	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	13	acl:relcl	_	_
16	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	17	nmod:poss	_	_
17	lodge	lodge	NOUN	NN	Number=Sing	15	obj	_	_
18	and	and	CCONJ	CC	_	21	cc	_	_
19	do	do	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	21	aux	_	Agree=R8-pos-agree|Haiku=21:aux|HaikuPos=AUX:VB:Mood=Imp|VerbForm=Fin
20	not	not	PART	RB	Polarity=Neg	21	advmod	_	_
21	freeze	freeze	VERB	VB	Mood=Imp|VerbForm=Fin	15	conj	_	_
22	to	to	ADP	IN	_	24	case	_	_
23	the	the	DET	DT	Definite=Def|PronType=Art	24	det	_	_
24	bottom	bottom	NOUN	NN	Number=Sing	21	obl	_	_
25	;	;	PUNCT	,	_	30	punct	_	_
26	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	29	nmod:poss	_	_
27	orange	orange	ADJ	JJ	Degree=Pos	29	amod	_	_
28	front	front	ADJ	JJ	Degree=Pos	29	amod	_	_
29	teeth	tooth	NOUN	NNS	Number=Plur	30	nsubj	_	_
30	contain	contain	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	parataxis	_	Agree=R7-rel-agree|Haiku=2:conj
31	iron	iron	NOUN	NN	Number=Sing	30	obj	_	_
32	,	,	PUNCT	,	_	34	punct	_	_
33	which	which	PRON	WDT	PronType=Rel	34	nsubj	_	_
34	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	31	acl:relcl	_	_
35	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	34	obj	_	_
36	extra	extra	ADV	RB	_	37	advmod	_	_
37	hard	hard	ADJ	JJ	Degree=Pos	34	xcomp	_	_
38	,	,	PUNCT	,	_	41	punct	_	_
39	and	and	CCONJ	CC	_	41	cc	_	_
40	never	never	ADV	RB	PronType=Neg	41	advmod	_	_
41	stop	stop	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
42	growing	grow	VERB	VBG	VerbForm=Ger	41	xcomp	_	_
43	.	.	PUNCT	.	_	2	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 | **fall** | past | Beavers | trees |  |  |  | with Beavers's teeth | vn become-109.1-1 «NP V ADJ»: agent=Patient tree=Result |
| 2 | **build** | present | Beavers *not said here* | dams |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset dam=Product |
| 3 | **make** | to-infinitive | Beavers *not said here* | deep ponds |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset pond=Product |
| 4 | **protect** | present | deep ponds | ponds's lodge |  |  |  |  | vn defend-72.3 «NP V NP»: agent=Agent lodge=Beneficiary |
| 5 | **not** **freeze** | present · do-support | deep ponds *not said here* |  |  |  |  | to the bottom | vn other\_cos-45.4-1 «NP.patient V»: agent=Patient |
| 6 | **contain** | present | ponds's orange front teeth | iron |  |  |  |  | vn comprise-107.2-2 «NP V NP»: agent=Pivot iron=Theme |
| 7 | **make** | present | iron | ponds *= pond* |  |  |  | hard *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset they=Product |
| 8 | **not** **stop** | present | Beavers *not said here* |  |  |  |  |  | vn stop-55.4-1-1 «NP V S\_ING»: agent=Affector clause=Eventuality |
| 9 | **grow** | gerund | Beavers *not said here* |  |  |  |  |  | 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:010-rivers-lakes-and-ponds.lesson:11`.

**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 ×1, 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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