---
title: Why could you still find your way with a compass if your phone died… — Compasses and the magnetic Earth · tree and pragmatics
description: Why could you still find your way with a compass if your phone died in the hills? Test 10 · ★ of lesson 30 «Compasses and the magnetic Earth» of the physics course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

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# Test 10 · ★ · Compasses and the magnetic Earth

<!-- .ven lang=en -->
Why could you still find your way with a compass if your phone died in the hills?

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 2 · right ✓ · **Who acts:** you, phone · **What happens:** find, die · **To what, where:** way

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This is test 10 · ★ of lesson 30 «Compasses and the magnetic Earth» of the physics 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/physics/30-compasses-and-the-magnetic-earth/#t10).

## The question {#question}

```conllu
# sent_id = question:physics:30-compasses-and-the-magnetic-earth:t10:1
# text = Why could you still find your way with a compass if your phone died in the hills?
1	Why	why	ADV	WRB	PronType=Int	5	advmod	_	_
2	could	could	AUX	MD	VerbForm=Fin	5	aux	_	_
3	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	5	nsubj	_	_
4	still	still	ADV	RB	_	5	advmod	_	_
5	find	find	VERB	VBP	Mood=Ind|Person=2|Tense=Pres|VerbForm=Fin	0	root	_	_
6	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	7	nmod:poss	_	_
7	way	way	NOUN	NN	Number=Sing	5	obj	_	_
8	with	with	ADP	IN	_	10	case	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
10	compass	compass	NOUN	NN	Number=Sing	5	obl	_	_
11	if	if	SCONJ	IN	_	14	mark	_	_
12	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	13	nmod:poss	_	_
13	phone	phone	NOUN	NN	Number=Sing	14	nsubj	_	_
14	died	die	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	5	ccomp	_	_
15	in	in	ADP	IN	_	17	case	_	_
16	the	the	DET	DT	Definite=Def|PronType=Art	17	det	_	_
17	hills	hill	NOUN	NNS	Number=Plur	14	obl	_	SpaceAfter=No
18	?	?	PUNCT	.	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **find** | could | you | your way |  |  | still | with a compass | vn declare-29.4-1-1 «NP V NP ADJ»: agent=Agent way=Attribute clause=Theme |
| 2 | **die** *a condition, not said to happen* | past | your phone |  |  |  |  | in the hills | vn calibratable\_cos-45.6.1 «NP.patient V PP.attribute»: agent=Patient in hill=Attribute |

<!-- .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 {#o1}

<!-- .ven lang=en -->
The hills recharge the compass as you walk

```conllu
# sent_id = question:physics:30-compasses-and-the-magnetic-earth:t10:o1:1
# text = The hills recharge the compass as you walk
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	hills	hill	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	recharge	recharge	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	compass	compass	NOUN	NN	Number=Sing	3	obj	_	_
6	as	as	SCONJ	IN	_	8	mark	_	_
7	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	8	nsubj	_	_
8	walk	walk	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	3	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **recharge** | infinitive | the hills | the compass |  |  |  |  | vn amuse-31.1 «NP V NP»: agent=Stimulus compass=Experiencer |
| 2 | **walk** | present | you |  |  |  |  |  | vn run-51.3.2-2-1 «NP V»: agent=Theme |

### Option 2 · ← Mova's choice · ✓ the right answer {#o2}

<!-- .ven lang=en -->
A compass needs no batteries or signal

```conllu
# sent_id = question:physics:30-compasses-and-the-magnetic-earth:t10:o2:1
# text = A compass needs no batteries or signal
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	compass	compass	NOUN	NN	Number=Sing	3	nsubj	_	_
3	needs	need	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	no	no	DET	DT	PronType=Neg	5	det	_	_
5	batteries	battery	NOUN	NNS	Number=Plur	3	obj	_	_
6	or	or	CCONJ	CC	_	7	cc	_	_
7	signal	signal	NOUN	NN	Number=Sing	5	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **need** | present | a compass | no batteries or signal |  |  |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot battery=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
A compass can also charge up a dead phone

```conllu
# sent_id = question:physics:30-compasses-and-the-magnetic-earth:t10:o3:1
# text = A compass can also charge up a dead phone
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	compass	compass	NOUN	NN	Number=Sing	5	nsubj	_	_
3	can	can	AUX	MD	VerbForm=Fin	5	aux	_	_
4	also	also	ADV	RB	_	5	advmod	_	_
5	charge	charge	VERB	VB	VerbForm=Inf	0	root	_	_
6	up	up	ADP	RP	_	5	compound:prt	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
8	dead	dead	ADJ	JJ	Degree=Pos	9	amod	_	_
9	phone	phone	NOUN	NN	Number=Sing	5	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **charge up** | can | a compass | a dead phone |  |  |  |  | vn run-51.3.2 «PP.location V NP»: agent=Initial\_Location phone=Theme |

### Option 4 {#o4}

<!-- .ven lang=en -->
The compass talks to satellites in space

```conllu
# sent_id = question:physics:30-compasses-and-the-magnetic-earth:t10:o4:1
# text = The compass talks to satellites in space
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	compass	compass	NOUN	NN	Number=Sing	3	nsubj	_	_
3	talks	talk	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	to	to	ADP	IN	_	5	case	_	_
5	satellites	satellite	NOUN	NNS	Number=Plur	3	obl	_	_
6	in	in	ADP	IN	_	7	case	_	_
7	space	space	NOUN	NN	Number=Sing	5	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **talk** | present | the compass |  |  |  |  | to satellites in space | vn talk-37.5 «NP V PP.co-agent»: agent=Agent to satellite=Co-Agent |

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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: [Compasses and the magnetic Earth, test 9](https://md.mova.elamur.ai/free/en/corpora/questions/physics/30-compasses-and-the-magnetic-earth/t9/)
- next →: [Compasses and the magnetic Earth, test 11](https://md.mova.elamur.ai/free/en/corpora/questions/physics/30-compasses-and-the-magnetic-earth/t11/)
- ↑ back to [Compasses and the magnetic Earth](https://md.mova.elamur.ai/free/en/corpora/questions/physics/30-compasses-and-the-magnetic-earth/)

