---
title: «why'd a beaver that eats pond weeds need a dam lol» What is the bes… — Mammal giants of the past: Paracerathe… · tree and pragmatics
description: «why'd a beaver that eats pond weeds need a dam lol» What is the best reasoning? Test 5 · ★ of lesson 384 «Mammal giants of the past: Paraceratherium, Diprotodon, the giant beaver and Gigantopithecus» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the ques
---

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# Test 5 · ★ · Mammal giants of the past: Paraceratherium, Diprotodon, th…

<!-- .ven lang=en -->
«why'd a beaver that eats pond weeds need a dam lol» What is the best reasoning?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 4 · wrong ✗ · **Who acts:** beaver, pond weeds, best reasoning · **What happens:** eat, need, be · **To what, where:** dam, beaver · **Speech:** someone speaks here

<!-- .vabout -->
This is test 5 · ★ of lesson 384 «Mammal giants of the past: Paraceratherium, Diprotodon, the giant beaver and Gigantopithecus» of the biology course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/biology/384-mammal-giants-of-the-past-paraceratherium-diprotodon-the-giant-beaver-and-gigantopithecus/#t5).

## The question {#question}

```conllu
# sent_id = question:biology:384-mammal-giants-of-the-past-paraceratherium-diprotodon-the-giant-beaver-and-gigantopithecus:t5:1
# text = «why'd a beaver that eats pond weeds need a dam lol» What is the best reasoning?
1	«	«	PUNCT	``	_	5	punct	_	SpaceAfter=No
2	why	why	ADV	WRB	PronType=Int	5	advmod	_	SpaceAfter=No
3	'd	would	AUX	MD	VerbForm=Fin	5	aux	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	beaver	beaver	NOUN	NN	Number=Sing	0	root	_	_
6	that	that	PRON	WDT	PronType=Rel	7	nsubj	_	_
7	eats	eat	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	acl:relcl	_	_
8	pond	pond	NOUN	NN	Number=Sing	9	compound	_	_
9	weeds	weed	NOUN	NNS	Number=Plur	10	nsubj	_	_
10	need	need	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	ccomp	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
12	dam	dam	NOUN	NN	Number=Sing	10	obj	_	_
13	lol	lol	INTJ	UH	_	7	discourse	_	SpaceAfter=No
14	»	»	PUNCT	''	_	7	punct	_	_
15	What	what	PRON	WP	PronType=Int	7	parataxis	_	_
16	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	15	cop	_	_
17	the	the	DET	DT	Definite=Def|PronType=Art	19	det	_	_
18	best	good	ADJ	JJS	Degree=Sup	19	amod	_	_
19	reasoning	reasoning	NOUN	NN	Number=Sing	15	nsubj	_	SpaceAfter=No
20	?	?	PUNCT	.	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **eat** *in a quote* | present | a beaver |  |  |  |  |  | tree rules |
| 2 | **need** *in a quote* | present | pond weeds | a dam |  |  |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot dam=Theme |
| 3 | **is a** | present | the best reasoning | a beaver |  |  |  |  | tree rules |

<!-- .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.

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
Every beaver must build a dam, or it cannot live at all

```conllu
# sent_id = question:biology:384-mammal-giants-of-the-past-paraceratherium-diprotodon-the-giant-beaver-and-gigantopithecus:t5:o1:1
# text = Every beaver must build a dam, or it cannot live at all
1	Every	every	DET	DT	PronType=Tot	2	det	_	_
2	beaver	beaver	NOUN	NN	Number=Sing	4	nsubj	_	_
3	must	must	AUX	MD	VerbForm=Fin	4	aux	_	_
4	build	build	VERB	VB	VerbForm=Inf	0	root	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	dam	dam	NOUN	NN	Number=Sing	4	obj	_	SpaceAfter=No
7	,	,	PUNCT	,	_	12	punct	_	_
8	or	or	CCONJ	CC	_	12	cc	_	_
9	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	12	nsubj	_	_
10	can	can	AUX	MD	VerbForm=Fin	12	aux	_	SpaceAfter=No
11	not	not	PART	RB	Polarity=Neg	12	advmod	_	_
12	live	live	VERB	VB	VerbForm=Inf	4	conj	_	_
13	at	at	ADP	IN	_	14	case	_	_
14	all	all	DET	DT	PronType=Tot	12	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **build** | must | every beaver | a dam |  |  |  |  | vn build-26.1-1 «NP V NP»: agent=Agent dam=Product |
| 2 | **not** **live** | can | beaver |  |  | all |  |  | vn lodge-46 «NP V PP.location»: agent=Theme at all=Location |

### Option 2 {#o2}

<!-- .ven lang=en -->
Dams are for sleeping only

```conllu
# sent_id = question:biology:384-mammal-giants-of-the-past-paraceratherium-diprotodon-the-giant-beaver-and-gigantopithecus:t5:o2:1
# text = Dams are for sleeping only
1	Dams	dam	NOUN	NNS	Number=Plur	4	nsubj	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	aux	_	_
3	for	for	SCONJ	IN	_	4	mark	_	_
4	sleeping	sleep	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
5	only	only	ADV	RB	_	4	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **sleep** | present · progressive | Dams |  |  |  |  |  | vn snooze-40.4-1 «NP V»: agent=Agent |

### Option 3 · ← Mova's choice {#o3}

<!-- .ven lang=en -->
Beavers build dams to hide fish

```conllu
# sent_id = question:biology:384-mammal-giants-of-the-past-paraceratherium-diprotodon-the-giant-beaver-and-gigantopithecus:t5:o3:1
# text = Beavers build dams to hide fish
1	Beavers	beaver	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	build	build	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	dams	dam	NOUN	NNS	Number=Plur	2	obj	_	_
4	to	to	PART	TO	_	5	mark	_	_
5	hide	hide	VERB	VB	VerbForm=Inf	2	advcl	_	_
6	fish	fish	NOUN	NN	Number=Sing	5	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **build** | present | Beavers | dams |  |  |  |  | vn build-26.1-1 «NP V NP»: agent=Agent dam=Product |
| 2 | **hide** | to-infinitive | Beavers *not said here* | fish |  |  |  |  | vn concealment-16-1 «NP V NP»: agent=Agent fish=Patient |

### Option 4 · ✓ the right answer {#o4}

<!-- .ven lang=en -->
It found its food in water already, so it might not need one

```conllu
# sent_id = question:biology:384-mammal-giants-of-the-past-paraceratherium-diprotodon-the-giant-beaver-and-gigantopithecus:t5:o4:1
# text = It found its food in water already, so it might not need one
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	found	find	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
3	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	4	nmod:poss	_	_
4	food	food	NOUN	NN	Number=Sing	2	obj	_	_
5	in	in	ADP	IN	_	6	case	_	_
6	water	water	NOUN	NN	Number=Sing	2	obl	_	_
7	already	already	ADV	RB	_	2	advmod	_	SpaceAfter=No
8	,	,	PUNCT	,	_	13	punct	_	_
9	so	so	ADV	RB	_	13	advmod	_	_
10	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	13	nsubj	_	_
11	might	might	AUX	MD	VerbForm=Fin	13	aux	_	_
12	not	not	PART	RB	Polarity=Neg	13	advmod	_	_
13	need	need	VERB	VB	VerbForm=Inf	2	conj	_	_
14	one	one	NUM	CD	NumForm=Word|NumType=Card	13	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **find** | past | It | its food |  | water |  |  | vn discover-84 «NP V NP»: agent=Agent food=Topic |
| 2 | **not** **need** | might | food | one |  |  |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot one=Theme |

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**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License.

<!-- /div -->

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