---
title: Count them: how is a flea different from a tick when you count legs? — Pests: mice in the kitchen, cockroache… · tree and pragmatics
description: Count them: how is a flea different from a tick when you count legs? Test 3 of lesson 397 «Pests: mice in the kitchen, cockroaches, clothes moths, fleas and head lice» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's c
---

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# Test 3 · Pests: mice in the kitchen, cockroaches, clothes moths, fl…

<!-- .ven lang=en -->
Count them: how is a flea different from a tick when you count legs?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** you, flea · **What happens:** count, be · **To what, where:** them, tick, legs

<!-- .vabout -->
This is test 3 of lesson 397 «Pests: mice in the kitchen, cockroaches, clothes moths, fleas and head lice» 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/397-pests-mice-in-the-kitchen-cockroaches-clothes-moths-fleas-and-head-lice/#t3).

## The question {#question}

```conllu
# sent_id = question:biology:397-pests-mice-in-the-kitchen-cockroaches-clothes-moths-fleas-and-head-lice:t3:1
# text = Count them: how is a flea different from a tick when you count legs?
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	:	_	1	punct	_	_
4	how	how	ADV	WRB	PronType=Int	8	advmod	_	_
5	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
7	flea	flea	NOUN	NN	Number=Sing	8	nsubj	_	_
8	different	different	ADJ	JJ	Degree=Pos	1	parataxis	_	_
9	from	from	ADP	IN	_	11	case	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
11	tick	tick	NOUN	NN	Number=Sing	8	obl	_	_
12	when	when	ADV	WRB	PronType=Int	14	advmod	_	_
13	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	14	nsubj	_	_
14	count	count	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	1	advcl	_	_
15	legs	leg	NOUN	NNS	Number=Plur	14	obj	_	SpaceAfter=No
16	?	?	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 | **is** | present | a flea |  |  | a tick |  | different *property* | tree rules |
| 3 | **count** | present | you | legs |  |  |  |  | vn multiply-108 «NP V NP»: agent=Agent leg=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.

## The options {#options}

### Option 1 · ← Mova's choice · ✓ the right answer {#o1}

<!-- .ven lang=en -->
A flea has 6 legs and a tick has 8

```conllu
# sent_id = question:biology:397-pests-mice-in-the-kitchen-cockroaches-clothes-moths-fleas-and-head-lice:t3:o1:1
# text = A flea has 6 legs and a tick has 8
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	flea	flea	NOUN	NN	Number=Sing	3	nsubj	_	_
3	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	6	6	NUM	CD	NumForm=Digit|NumType=Card	5	nummod	_	_
5	legs	leg	NOUN	NNS	Number=Plur	3	obj	_	_
6	and	and	CCONJ	CC	_	9	cc	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	tick	tick	NOUN	NN	Number=Sing	9	nsubj	_	_
9	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	conj	_	_
10	8	8	NUM	CD	NumForm=Digit|NumType=Card	9	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | a flea | 6 legs |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent leg=Patient |
| 2 | **have** | present | a tick | 8 |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent 8=Patient |

### Option 2 {#o2}

<!-- .ven lang=en -->
Both have 8 legs

```conllu
# sent_id = question:biology:397-pests-mice-in-the-kitchen-cockroaches-clothes-moths-fleas-and-head-lice:t3:o2:1
# text = Both have 8 legs
1	Both	both	DET	DT	PronType=Tot	2	nsubj	_	_
2	have	have	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	8	8	NUM	CD	NumForm=Digit|NumType=Card	4	nummod	_	_
4	legs	leg	NOUN	NNS	Number=Plur	2	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | Both | 8 legs |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent leg=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
Both have 6 legs

```conllu
# sent_id = question:biology:397-pests-mice-in-the-kitchen-cockroaches-clothes-moths-fleas-and-head-lice:t3:o3:1
# text = Both have 6 legs
1	Both	both	DET	DT	PronType=Tot	2	nsubj	_	_
2	have	have	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	6	6	NUM	CD	NumForm=Digit|NumType=Card	4	nummod	_	_
4	legs	leg	NOUN	NNS	Number=Plur	2	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | Both | 6 legs |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent leg=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
A flea has 8 legs and a tick has 6

```conllu
# sent_id = question:biology:397-pests-mice-in-the-kitchen-cockroaches-clothes-moths-fleas-and-head-lice:t3:o4:1
# text = A flea has 8 legs and a tick has 6
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	flea	flea	NOUN	NN	Number=Sing	3	nsubj	_	_
3	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	8	8	NUM	CD	NumForm=Digit|NumType=Card	5	nummod	_	_
5	legs	leg	NOUN	NNS	Number=Plur	3	obj	_	_
6	and	and	CCONJ	CC	_	9	cc	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	tick	tick	NOUN	NN	Number=Sing	9	nsubj	_	_
9	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	conj	_	_
10	6	6	NUM	CD	NumForm=Digit|NumType=Card	9	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | a flea | 8 legs |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent leg=Patient |
| 2 | **have** | present | a tick | 6 |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent 6=Patient |

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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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