---
title: Why must nobody ever poke a knife into a toaster, even to get stuck… — Batteries, circuits and how electricit… · tree and pragmatics
description: Why must nobody ever poke a knife into a toaster, even to get stuck toast out? Test 6 of lesson 27 «Batteries, circuits and how electricity flows» 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 wrong.
---

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# Test 6 · Batteries, circuits and how electricity flows

<!-- .ven lang=en -->
Why must nobody ever poke a knife into a toaster, even to get stuck toast out?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** nobody · **What happens:** poke, get out · **To what, where:** knife, stuck toast

<!-- .vabout -->
This is test 6 of lesson 27 «Batteries, circuits and how electricity flows» 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/27-batteries-circuits-and-how-electricity-flows/#t6).

## The question {#question}

```conllu
# sent_id = question:physics:27-batteries-circuits-and-how-electricity-flows:t6:1
# text = Why must nobody ever poke a knife into a toaster, even to get stuck toast out?
1	Why	why	ADV	WRB	PronType=Int	5	advmod	_	_
2	must	must	AUX	MD	VerbForm=Fin	5	aux	_	_
3	nobody	nobody	PRON	NN	Number=Sing|PronType=Neg	5	nsubj	_	_
4	ever	ever	ADV	RB	PronType=Ind	5	advmod	_	_
5	poke	poke	VERB	VB	VerbForm=Inf	0	root	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
7	knife	knife	NOUN	NN	Number=Sing	5	obj	_	_
8	into	into	ADP	IN	_	10	case	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
10	toaster	toaster	NOUN	NN	Number=Sing	5	obl	_	SpaceAfter=No
11	,	,	PUNCT	,	_	14	punct	_	_
12	even	even	ADV	RB	_	14	advmod	_	_
13	to	to	PART	TO	_	14	mark	_	_
14	get	get	VERB	VB	Mood=Imp|VerbForm=Fin	5	parataxis	_	_
15	stuck	stuck	ADJ	JJ	Degree=Pos	16	amod	_	_
16	toast	toast	NOUN	NN	Number=Sing	14	obj	_	_
17	out	out	ADP	RP	_	14	compound:prt	_	SpaceAfter=No
18	?	?	PUNCT	.	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **poke** | must | nobody | a knife |  |  | ever | into a toaster | vn poke-19-1-1-1 «NP V NP PP.patient»: agent=Agent knife=Instrument into toaster=Patient |
| 2 | **get out** | to-infinitive |  | stuck toast |  |  |  |  | tree rules |

<!-- .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 -->
The knife will make the toast taste of metal

```conllu
# sent_id = question:physics:27-batteries-circuits-and-how-electricity-flows:t6:o1:1
# text = The knife will make the toast taste of metal
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	knife	knife	NOUN	NN	Number=Sing	4	nsubj	_	_
3	will	will	AUX	MD	VerbForm=Fin	4	aux	_	_
4	make	make	VERB	VB	VerbForm=Inf	0	root	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	toast	toast	NOUN	NN	Number=Sing	7	compound	_	_
7	taste	taste	NOUN	NN	Number=Sing	4	obj	_	_
8	of	of	ADP	IN	_	9	case	_	_
9	metal	metal	NOUN	NN	Number=Sing	7	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | future | the knife | the toast taste of metal |  |  |  |  | vn build-26.1-1 «NP.material V NP»: agent=Material taste=Product |
| 2 | **taste** |  |  | metal |  |  |  |  | nom taste «cognition transitive»: of=patient |

### Option 2 {#o2}

<!-- .ven lang=en -->
The bread will catch fire from the knife

```conllu
# sent_id = question:physics:27-batteries-circuits-and-how-electricity-flows:t6:o2:1
# text = The bread will catch fire from the knife
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	bread	bread	NOUN	NN	Number=Sing	4	nsubj	_	_
3	will	will	AUX	MD	VerbForm=Fin	4	aux	_	_
4	catch	catch	VERB	VB	VerbForm=Inf	0	root	_	_
5	fire	fire	NOUN	NN	Number=Sing	4	obj	_	_
6	from	from	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	knife	knife	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **catch** | future | the bread | fire |  | the knife |  |  | vn get-13.5.1 «NP V NP PP.source»: agent=Agent fire=Theme from knife=Source |

### Option 3 {#o3}

<!-- .ven lang=en -->
The knife will cool the hot wires down and make them break

```conllu
# sent_id = question:physics:27-batteries-circuits-and-how-electricity-flows:t6:o3:1
# text = The knife will cool the hot wires down and make them break
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	knife	knife	NOUN	NN	Number=Sing	4	nsubj	_	_
3	will	will	AUX	MD	VerbForm=Fin	4	aux	_	_
4	cool	cool	VERB	VB	VerbForm=Inf	0	root	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	hot	hot	ADJ	JJ	Degree=Pos	7	amod	_	_
7	wires	wire	NOUN	NNS	Number=Plur	4	obj	_	_
8	down	down	ADV	RB	_	4	advmod	_	_
9	and	and	CCONJ	CC	_	10	cc	_	_
10	make	make	VERB	VB	VerbForm=Inf	4	conj	_	_
11	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	10	obj	_	_
12	break	break	VERB	VB	VerbForm=Inf	10	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **cool** | future | the knife | the hot wires |  |  |  | down *property* | vn other\_cos-45.4 «NP V NP.patient»: agent=Agent wire=Patient |
| 2 | **make** | infinitive | the knife *not said here* | wires *= wire* |  |  |  |  | tree rules |
| 3 | **break** | infinitive | wires *= wire* *not said here* |  |  |  |  |  | vn hurt-40.8.3-1-1 «NP V»: agent=Patient |

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

<!-- .ven lang=en -->
The wires inside are live and can give a deadly shock

```conllu
# sent_id = question:physics:27-batteries-circuits-and-how-electricity-flows:t6:o4:1
# text = The wires inside are live and can give a deadly shock
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	wires	wire	NOUN	NNS	Number=Plur	5	nsubj	_	_
3	inside	inside	ADV	RB	_	2	advmod	_	_
4	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
5	live	live	ADJ	JJ	Degree=Pos	0	root	_	_
6	and	and	CCONJ	CC	_	8	cc	_	_
7	can	can	AUX	MD	VerbForm=Fin	8	aux	_	_
8	give	give	VERB	VB	VerbForm=Inf	5	conj	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
10	deadly	deadly	ADJ	JJ	Degree=Pos	11	amod	_	_
11	shock	shock	NOUN	NN	Number=Sing	8	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | the wires |  |  |  |  | live *property* | tree rules |
| 2 | **give** | can | the wires *not said here* | a deadly shock |  |  |  |  | vn give-13.1-1 «NP V NP»: agent=Agent shock=Theme |

<!-- div src -->

**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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