---
title: Count them: a pair of pigeons has 2 chicks in the nest. How many bea… — Pigeons: head bobbing, homing and city… · tree and pragmatics
description: Count them: a pair of pigeons has 2 chicks in the nest. How many beaks and how many feet altogether? Test 9 of lesson 221 «Pigeons: head bobbing, homing and city cliffs» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's
---

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# Test 9 · Pigeons: head bobbing, homing and city cliffs

<!-- .ven lang=en -->
Count them: a pair of pigeons has 2 chicks in the nest. How many beaks and how many feet altogether?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** you, pair · **What happens:** count, have · **To what, where:** them, 2 chicks, nest

<!-- .vabout -->
This is test 9 of lesson 221 «Pigeons: head bobbing, homing and city cliffs» 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/221-pigeons-head-bobbing-homing-and-city-cliffs/#t9).

## The question {#question}

<!-- .note -->
*Sentence 1:* Count them: a pair of pigeons has 2 chicks in the nest.

```conllu
# sent_id = question:biology:221-pigeons-head-bobbing-homing-and-city-cliffs:t9:1
# text = Count them: a pair of pigeons has 2 chicks in the nest.
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	:	_	8	punct	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	pair	pair	NOUN	NN	Number=Sing	8	nsubj	_	_
6	of	of	ADP	IN	_	7	case	_	_
7	pigeons	pigeon	NOUN	NNS	Number=Plur	5	nmod	_	_
8	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	1	parataxis	_	_
9	2	2	NUM	CD	NumForm=Digit|NumType=Card	10	nummod	_	_
10	chicks	chick	NOUN	NNS	Number=Plur	8	obj	_	_
11	in	in	ADP	IN	_	13	case	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	nest	nest	NOUN	NN	Number=Sing	8	obl	_	SpaceAfter=No
14	.	.	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 | **have** | present | a pair of pigeons | 2 chicks |  | the nest |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent chick=Patient |

<!-- .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 beaks and how many feet altogether?

```conllu
# sent_id = question:biology:221-pigeons-head-bobbing-homing-and-city-cliffs:t9:2
# text = How many beaks and how many feet altogether?
1	How	how	ADV	WRB	PronType=Int	2	advmod	_	_
2	many	many	ADJ	JJ	Degree=Pos	3	amod	_	_
3	beaks	beak	NOUN	NNS	Number=Plur	0	root	_	_
4	and	and	CCONJ	CC	_	7	cc	_	_
5	how	how	ADV	WRB	PronType=Int	6	advmod	_	_
6	many	many	ADJ	JJ	Degree=Pos	7	amod	_	_
7	feet	foot	NOUN	NNS	Number=Plur	3	conj	_	_
8	altogether	altogether	ADV	RB	_	3	advmod	_	SpaceAfter=No
9	?	?	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 -->
4 beaks and 16 feet

```conllu
# sent_id = question:biology:221-pigeons-head-bobbing-homing-and-city-cliffs:t9:o1:1
# text = 4 beaks and 16 feet
1	4	4	NUM	CD	NumForm=Digit|NumType=Card	2	nummod	_	_
2	beaks	beak	NOUN	NNS	Number=Plur	0	root	_	_
3	and	and	CCONJ	CC	_	5	cc	_	_
4	16	16	NUM	CD	NumForm=Digit|NumType=Card	5	nummod	_	_
5	feet	foot	NOUN	NNS	Number=Plur	2	conj	_	_
```

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

### Option 2 {#o2}

<!-- .ven lang=en -->
2 beaks and 8 feet

```conllu
# sent_id = question:biology:221-pigeons-head-bobbing-homing-and-city-cliffs:t9:o2:1
# text = 2 beaks and 8 feet
1	2	2	NUM	CD	NumForm=Digit|NumType=Card	2	nummod	_	_
2	beaks	beak	NOUN	NNS	Number=Plur	0	root	_	_
3	and	and	CCONJ	CC	_	5	cc	_	_
4	8	8	NUM	CD	NumForm=Digit|NumType=Card	5	nummod	_	_
5	feet	foot	NOUN	NNS	Number=Plur	2	conj	_	_
```

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

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
4 beaks and 8 feet

```conllu
# sent_id = question:biology:221-pigeons-head-bobbing-homing-and-city-cliffs:t9:o3:1
# text = 4 beaks and 8 feet
1	4	4	NUM	CD	NumForm=Digit|NumType=Card	2	nummod	_	_
2	beaks	beak	NOUN	NNS	Number=Plur	0	root	_	_
3	and	and	CCONJ	CC	_	5	cc	_	_
4	8	8	NUM	CD	NumForm=Digit|NumType=Card	5	nummod	_	_
5	feet	foot	NOUN	NNS	Number=Plur	2	conj	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
4 beaks and 4 feet

```conllu
# sent_id = question:biology:221-pigeons-head-bobbing-homing-and-city-cliffs:t9:o4:1
# text = 4 beaks and 4 feet
1	4	4	NUM	CD	NumForm=Digit|NumType=Card	2	nummod	_	_
2	beaks	beak	NOUN	NNS	Number=Plur	0	root	_	_
3	and	and	CCONJ	CC	_	5	cc	_	_
4	4	4	NUM	CD	NumForm=Digit|NumType=Card	5	nummod	_	_
5	feet	foot	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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