---
title: Lost in a forest with no sun, which tool helps you find north? — Magnets · tree and pragmatics
description: Lost in a forest with no sun, which tool helps you find north? Test 5 · ★ of lesson 81 «Magnets» of the world 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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[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/world/81-magnets/t5/)

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# Test 5 · ★ · Magnets

<!-- .ven lang=en -->
Lost in a forest with no sun, which tool helps you find north?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** you · **What happens:** lose, help, find · **To what, where:** forest

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This is test 5 · ★ of lesson 81 «Magnets» of the world 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/world/81-magnets/#t5).

## The question {#question}

```conllu
# sent_id = question:world:81-magnets:t5:1
# text = Lost in a forest with no sun, which tool helps you find north?
1	Lost	lose	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	11	advcl	_	_
2	in	in	ADP	IN	_	4	case	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
4	forest	forest	NOUN	NN	Number=Sing	1	obl	_	_
5	with	with	ADP	IN	_	7	case	_	_
6	no	no	DET	DT	PronType=Neg	7	det	_	_
7	sun	sun	NOUN	NN	Number=Sing	4	nmod	_	SpaceAfter=No
8	,	,	PUNCT	,	_	10	punct	_	_
9	which	which	DET	WDT	PronType=Int	10	det	_	_
10	tool	tool	NOUN	NN	Number=Sing	7	conj	_	_
11	helps	help	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
12	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	13	nsubj	_	_
13	find	find	VERB	VB	VerbForm=Inf	11	xcomp	_	_
14	north	north	ADV	RB	_	13	advmod	_	SpaceAfter=No
15	?	?	PUNCT	.	_	11	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **lose** | participle |  |  |  | a forest with no sun and which tool |  |  | vn succeed-74-3-1 «NP V PP.eventuality S\_ING»: agent=Agent in forest=Eventuality |
| 2 | **help** | present |  |  |  |  |  |  | vn help-72.1-1-1 «NP V NP S\_INF»: agent=Agent clause=Theme |
| 3 | **find** | infinitive | you |  |  |  |  | north *property* | vn declare-29.4-1-1 «NP V what S\_INF»: agent=Agent |

<!-- .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 {#o1}

<!-- .ven lang=en -->
A magnifying glass

```conllu
# sent_id = question:world:81-magnets:t5:o1:1
# text = A magnifying glass
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	magnifying	magnify	VERB	VBG	VerbForm=Ger	3	amod	_	_
3	glass	glass	NOUN	NN	Number=Sing	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **magnify** | gerund |  |  |  |  |  |  | vn remedy-45.7-1 «NP V ADV-Middle»: agent=Patient |

### Option 2 {#o2}

<!-- .ven lang=en -->
A thermometer

```conllu
# sent_id = question:world:81-magnets:t5:o2:1
# text = A thermometer
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	thermometer	thermometer	NOUN	NN	Number=Sing	0	root	_	_
```

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

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

<!-- .ven lang=en -->
A compass

```conllu
# sent_id = question:world:81-magnets:t5:o3:1
# text = A compass
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	compass	compass	NOUN	NN	Number=Sing	0	root	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
A ruler

```conllu
# sent_id = question:world:81-magnets:t5:o4:1
# text = A ruler
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	ruler	ruler	NOUN	NN	Number=Sing	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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