---
title: Count them: the water jar test is done with 4 crows and then 3 rooks… — How scientists test animal minds: the… · tree and pragmatics
description: Count them: the water jar test is done with 4 crows and then 3 rooks. How many birds in all, and how many legs? Test 5 · ★★★ of lesson 389 «How scientists test animal minds: the mirror test, puzzle boxes and Clever Hans» of the biology course of Mova's primary school, with the dependency tree and pr
---

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# Test 5 · ★★★ · How scientists test animal minds: the mirror test, puzzle…

<!-- .ven lang=en -->
Count them: the water jar test is done with 4 crows and then 3 rooks. How many birds in all, and how many legs?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** you · **What happens:** count, do · **To what, where:** them, jar test

<!-- .vabout -->
This is test 5 · ★★★ of lesson 389 «How scientists test animal minds: the mirror test, puzzle boxes and Clever Hans» 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/389-how-scientists-test-animal-minds-the-mirror-test-puzzle-boxes-and-clever-hans/#t5).

## The question {#question}

<!-- .note -->
*Sentence 1:* Count them: the water jar test is done with 4 crows and then 3 rooks.

```conllu
# sent_id = question:biology:389-how-scientists-test-animal-minds-the-mirror-test-puzzle-boxes-and-clever-hans:t5:1
# text = Count them: the water jar test is done with 4 crows and then 3 rooks.
1	Count	count	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	1	obj	_	SpaceAfter=No
3	:	:	PUNCT	:	_	9	punct	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
5	water	water	NOUN	NN	Number=Sing	6	compound	_	_
6	jar	jar	NOUN	NN	Number=Sing	7	compound	_	_
7	test	test	NOUN	NN	Number=Sing	9	nsubj:pass	_	_
8	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	aux:pass	_	_
9	done	do	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	1	parataxis	_	_
10	with	with	ADP	IN	_	12	case	_	_
11	4	4	NUM	CD	NumForm=Digit|NumType=Card	12	nummod	_	_
12	crows	crow	NOUN	NNS	Number=Plur	9	obl	_	_
13	and	and	CCONJ	CC	_	16	cc	_	_
14	then	then	ADV	RB	PronType=Dem	16	advmod	_	_
15	3	3	NUM	CD	NumForm=Digit|NumType=Card	16	nummod	_	_
16	rooks	rook	NOUN	NNS	Number=Plur	12	conj	_	SpaceAfter=No
17	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **count** | imperative | you *not said here* | them *= they* |  |  |  |  | vn multiply-108 «NP V NP»: agent=Agent they=Theme |
| 2 | **do** | present · passive |  | the jar test |  |  |  | with 4 crows and 3 rooks | vn act-114-1 «NP V NP»: subject=Eventuality |

<!-- .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.

<!-- .note -->
*Sentence 2:* How many birds in all, and how many legs?

```conllu
# sent_id = question:biology:389-how-scientists-test-animal-minds-the-mirror-test-puzzle-boxes-and-clever-hans:t5:2
# text = How many birds in all, and how many legs?
1	How	how	ADV	WRB	PronType=Int	2	advmod	_	_
2	many	many	ADJ	JJ	Degree=Pos	3	amod	_	_
3	birds	bird	NOUN	NNS	Number=Plur	0	root	_	_
4	in	in	ADP	IN	_	5	case	_	_
5	all	all	DET	DT	PronType=Tot	3	nmod	_	SpaceAfter=No
6	,	,	PUNCT	,	_	10	punct	_	_
7	and	and	CCONJ	CC	_	10	cc	_	_
8	how	how	ADV	WRB	PronType=Int	9	advmod	_	_
9	many	many	ADJ	JJ	Degree=Pos	10	amod	_	_
10	legs	leg	NOUN	NNS	Number=Plur	3	conj	_	SpaceAfter=No
11	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
7 birds, 7 legs

```conllu
# sent_id = question:biology:389-how-scientists-test-animal-minds-the-mirror-test-puzzle-boxes-and-clever-hans:t5:o1:1
# text = 7 birds, 7 legs
1	7	7	NUM	CD	NumForm=Digit|NumType=Card	2	nummod	_	_
2	birds	bird	NOUN	NNS	Number=Plur	0	root	_	SpaceAfter=No
3	,	,	PUNCT	,	_	5	punct	_	_
4	7	7	NUM	CD	NumForm=Digit|NumType=Card	5	nummod	_	_
5	legs	leg	NOUN	NNS	Number=Plur	2	conj	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 2 · ✓ the right answer {#o2}

<!-- .ven lang=en -->
7 birds, 14 legs

```conllu
# sent_id = question:biology:389-how-scientists-test-animal-minds-the-mirror-test-puzzle-boxes-and-clever-hans:t5:o2:1
# text = 7 birds, 14 legs
1	7	7	NUM	CD	NumForm=Digit|NumType=Card	2	nummod	_	_
2	birds	bird	NOUN	NNS	Number=Plur	0	root	_	SpaceAfter=No
3	,	,	PUNCT	,	_	5	punct	_	_
4	14	14	NUM	CD	NumForm=Digit|NumType=Card	5	nummod	_	_
5	legs	leg	NOUN	NNS	Number=Plur	2	conj	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 3 {#o3}

<!-- .ven lang=en -->
7 birds, 28 legs

```conllu
# sent_id = question:biology:389-how-scientists-test-animal-minds-the-mirror-test-puzzle-boxes-and-clever-hans:t5:o3:1
# text = 7 birds, 28 legs
1	7	7	NUM	CD	NumForm=Digit|NumType=Card	2	nummod	_	_
2	birds	bird	NOUN	NNS	Number=Plur	0	root	_	SpaceAfter=No
3	,	,	PUNCT	,	_	5	punct	_	_
4	28	28	NUM	CD	NumForm=Digit|NumType=Card	5	nummod	_	_
5	legs	leg	NOUN	NNS	Number=Plur	2	conj	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 4 {#o4}

<!-- .ven lang=en -->
12 birds, 14 legs

```conllu
# sent_id = question:biology:389-how-scientists-test-animal-minds-the-mirror-test-puzzle-boxes-and-clever-hans:t5:o4:1
# text = 12 birds, 14 legs
1	12	12	NUM	CD	NumForm=Digit|NumType=Card	2	nummod	_	_
2	birds	bird	NOUN	NNS	Number=Plur	0	root	_	SpaceAfter=No
3	,	,	PUNCT	,	_	5	punct	_	_
4	14	14	NUM	CD	NumForm=Digit|NumType=Card	5	nummod	_	_
5	legs	leg	NOUN	NNS	Number=Plur	2	conj	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

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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.

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