---
title: Count them: four pond skaters and two dragonflies on the pond. How m… — Rivers, lakes and ponds · tree and pragmatics
description: Count them: four pond skaters and two dragonflies on the pond. How many legs? Test 4 · ★★★ of lesson 10 «Rivers, lakes and ponds» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Test 4 · ★★★ · Rivers, lakes and ponds

<!-- .ven lang=en -->
Count them: four pond skaters and two dragonflies on the pond. How many legs?

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

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This is test 4 · ★★★ of lesson 10 «Rivers, lakes and ponds» 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/10-rivers-lakes-and-ponds/#t4).

## The question {#question}

<!-- .note -->
*Sentence 1:* Count them: four pond skaters and two dragonflies on the pond.

```conllu
# sent_id = question:biology:10-rivers-lakes-and-ponds:t4:1
# text = Count them: four pond skaters and two dragonflies on the pond.
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	:	_	6	punct	_	_
4	four	four	NUM	CD	NumForm=Word|NumType=Card	6	nummod	_	_
5	pond	pond	NOUN	NN	Number=Sing	6	compound	_	_
6	skaters	skater	NOUN	NNS	Number=Plur	1	obl	_	_
7	and	and	CCONJ	CC	_	9	cc	_	_
8	two	two	NUM	CD	NumForm=Word|NumType=Card	9	nummod	_	_
9	dragonflies	dragonfly	NOUN	NNS	Number=Plur	6	conj	_	_
10	on	on	ADP	IN	_	12	case	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	pond	pond	NOUN	NN	Number=Sing	1	obl	_	SpaceAfter=No
13	.	.	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* |  | the pond |  | four pond skaters and two dragonflies *obl* | vn multiply-108 «NP V NP»: agent=Agent they=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.

<!-- .note -->
*Sentence 2:* How many legs?

```conllu
# sent_id = question:biology:10-rivers-lakes-and-ponds:t4:2
# text = How many legs?
1	How	how	ADV	WRB	PronType=Int	2	advmod	_	_
2	many	many	ADJ	JJ	Degree=Pos	3	amod	_	_
3	legs	leg	NOUN	NNS	Number=Plur	0	root	_	SpaceAfter=No
4	?	?	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 -->
24

```conllu
# sent_id = question:biology:10-rivers-lakes-and-ponds:t4:o1:1
# text = 24
1	24	24	NUM	CD	NumForm=Digit|NumType=Card	0	root	_	_
```

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

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

<!-- .ven lang=en -->
36

```conllu
# sent_id = question:biology:10-rivers-lakes-and-ponds:t4:o2:1
# text = 36
1	36	36	NUM	CD	NumForm=Digit|NumType=Card	0	root	_	_
```

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

### Option 3 {#o3}

<!-- .ven lang=en -->
30

```conllu
# sent_id = question:biology:10-rivers-lakes-and-ponds:t4:o3:1
# text = 30
1	30	30	NUM	CD	NumForm=Digit|NumType=Card	0	root	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
40

```conllu
# sent_id = question:biology:10-rivers-lakes-and-ponds:t4:o4:1
# text = 40
1	40	40	NUM	CD	NumForm=Digit|NumType=Card	0	root	_	_
```

<!-- .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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- ← previous: [Rivers, lakes and ponds, test 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/10-rivers-lakes-and-ponds/t3/)
- next →: [Rivers, lakes and ponds, test 5](https://md.mova.elamur.ai/free/en/corpora/questions/biology/10-rivers-lakes-and-ponds/t5/)
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