---
title: A spider has 8 legs. Two Goliath birdeaters sit on a log, and a thir… — The Amazon forest floor: leafcutters,… · tree and pragmatics
description: A spider has 8 legs. Two Goliath birdeaters sit on a log, and a third one comes. How many legs? Test 3 of lesson 157 «The Amazon forest floor: leafcutters, army ants, tapirs, jaguars and the giant spider» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the 
---

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# Test 3 · The Amazon forest floor: leafcutters, army ants, tapirs, j…

<!-- .ven lang=en -->
A spider has 8 legs. Two Goliath birdeaters sit on a log, and a third one comes. How many legs?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** spider, Two Goliath birdeaters, third one · **What happens:** have, sit, come · **To what, where:** 8 legs, log

<!-- .vabout -->
This is test 3 of lesson 157 «The Amazon forest floor: leafcutters, army ants, tapirs, jaguars and the giant spider» 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/157-the-amazon-forest-floor/#t3).

## The question {#question}

<!-- .note -->
*Sentence 1:* A spider has 8 legs.

```conllu
# sent_id = question:biology:157-the-amazon-forest-floor:t3:1
# text = A spider has 8 legs.
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	spider	spider	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	_	SpaceAfter=No
6	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | a spider | 8 legs |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent leg=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:* Two Goliath birdeaters sit on a log, and a third one comes.

```conllu
# sent_id = question:biology:157-the-amazon-forest-floor:t3:2
# text = Two Goliath birdeaters sit on a log, and a third one comes.
1	Two	two	NUM	CD	NumForm=Word|NumType=Card	3	nummod	_	_
2	Goliath	goliath	NOUN	NN	Number=Sing	3	compound	_	_
3	birdeaters	birdeater	NOUN	NNS	Number=Plur	4	nsubj	_	_
4	sit	sit	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	on	on	ADP	IN	_	7	case	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
7	log	log	NOUN	NN	Number=Sing	4	obl	_	SpaceAfter=No
8	,	,	PUNCT	,	_	13	punct	_	_
9	and	and	CCONJ	CC	_	13	cc	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
11	third	third	ADJ	JJ	Degree=Pos|NumForm=Word|NumType=Ord	12	amod	_	_
12	one	one	NOUN	NN	Number=Sing	13	nsubj	_	_
13	comes	come	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	conj	_	SpaceAfter=No
14	.	.	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **sit** | present | Two Goliath birdeaters |  |  | a log |  |  | vn assuming\_position-50 «NP V PP.location»: agent=Agent on log=Location |
| 2 | **come** | present | a third one |  |  |  |  |  | vn escape-51.1-1 «NP V»: agent=Theme |

<!-- .note -->
*Sentence 3:* How many legs?

```conllu
# sent_id = question:biology:157-the-amazon-forest-floor:t3:3
# 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 -->
16

```conllu
# sent_id = question:biology:157-the-amazon-forest-floor:t3:o1:1
# text = 16
1	16	16	NUM	CD	NumForm=Digit|NumType=Card	0	root	_	_
```

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

### Option 2 {#o2}

<!-- .ven lang=en -->
32

```conllu
# sent_id = question:biology:157-the-amazon-forest-floor:t3:o2:1
# text = 32
1	32	32	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 -->
18

```conllu
# sent_id = question:biology:157-the-amazon-forest-floor:t3:o3:1
# text = 18
1	18	18	NUM	CD	NumForm=Digit|NumType=Card	0	root	_	_
```

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

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

<!-- .ven lang=en -->
24

```conllu
# sent_id = question:biology:157-the-amazon-forest-floor:t3:o4:1
# 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.

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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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