---
title: Which of the following statements most accurately characterises the… — Recycling: giving materials a second l… · tree and pragmatics
description: Which of the following statements most accurately characterises the recycling of aluminium? Exam question 2 of lesson 32 «Recycling: giving materials a second life» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's ch
---

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# Exam question 2 · Recycling: giving materials a second life

<!-- .ven lang=en -->
Which of the following statements most accurately characterises the recycling of aluminium?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **What happens:** follow, characteris · **To what, where:** recycling

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This is exam question 2 of lesson 32 «Recycling: giving materials a second life» of the chemistry course of Mova's primary school, asked in stiff, formal language. 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/chemistry/32-recycling-second-life/#e2).

## The question {#question}

```conllu
# sent_id = question:chemistry:32-recycling-second-life:e2:1
# text = Which of the following statements most accurately characterises the recycling of aluminium?
1	Which	which	PRON	WDT	PronType=Rel	8	nsubj	_	_
2	of	of	ADP	IN	_	5	case	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	following	follow	VERB	VBG	VerbForm=Ger	5	amod	_	_
5	statements	statement	NOUN	NNS	Number=Plur	8	obl	_	_
6	most	most	ADV	RBS	Degree=Sup	7	advmod	_	_
7	accurately	accurately	ADV	RB	_	8	advmod	_	_
8	characterises	characteris	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	recycling	recycling	NOUN	NN	Number=Sing	8	obj	_	_
11	of	of	ADP	IN	_	12	case	_	_
12	aluminium	aluminium	NOUN	NN	Number=Sing	10	nmod	_	SpaceAfter=No
13	?	?	PUNCT	.	_	8	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **follow** | gerund |  |  |  |  |  |  | vn occur-48.3-1 «NP V»: agent=Theme |
| 2 | **characteris** | present |  | the recycling of aluminium |  |  |  | of the following statements; accurately *property* | 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 -->
It requires more energy than production from ore

```conllu
# sent_id = question:chemistry:32-recycling-second-life:e2:o1:1
# text = It requires more energy than production from ore
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	requires	require	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	more	more	ADJ	JJR	Degree=Cmp	4	amod	_	_
4	energy	energy	NOUN	NN	Number=Sing	2	obj	_	_
5	than	than	ADP	IN	_	6	case	_	_
6	production	production	NOUN	NN	Number=Sing	2	obl	_	_
7	from	from	ADP	IN	_	8	case	_	_
8	ore	ore	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **require** | present | It | more energy |  | ore |  | than production | vn require-103-1 «NP V NP PP.source»: agent=Theme energy=Precondition from ore=Source |

### Option 2 {#o2}

<!-- .ven lang=en -->
It can be performed only once

```conllu
# sent_id = question:chemistry:32-recycling-second-life:e2:o2:1
# text = It can be performed only once
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	nsubj:pass	_	_
2	can	can	AUX	MD	VerbForm=Fin	4	aux	_	_
3	be	be	AUX	VB	VerbForm=Inf	4	aux:pass	_	_
4	performed	perform	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	only	only	ADV	RB	_	6	advmod	_	_
6	once	once	ADV	RB	NumForm=Word|NumType=Mult	4	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **perform** | can · passive |  | It |  |  |  | once *property* | vn performance-26.7 «NP V NP»: subject=Theme |

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

<!-- .ven lang=en -->
It requires far less energy than production from ore

```conllu
# sent_id = question:chemistry:32-recycling-second-life:e2:o3:1
# text = It requires far less energy than production from ore
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	requires	require	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	far	far	ADV	RB	Degree=Pos	4	advmod	_	_
4	less	less	ADJ	JJR	Degree=Cmp	5	amod	_	_
5	energy	energy	NOUN	NN	Number=Sing	2	obj	_	_
6	than	than	ADP	IN	_	7	case	_	_
7	production	production	NOUN	NN	Number=Sing	2	obl	_	_
8	from	from	ADP	IN	_	9	case	_	_
9	ore	ore	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **require** | present | It | less energy |  | ore |  | than production | vn require-103-1 «NP V NP PP.source»: agent=Theme energy=Precondition from ore=Source |

### Option 4 {#o4}

<!-- .ven lang=en -->
It converts the metal into glass

```conllu
# sent_id = question:chemistry:32-recycling-second-life:e2:o4:1
# text = It converts the metal into glass
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	converts	convert	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	metal	metal	NOUN	NN	Number=Sing	2	obj	_	_
5	into	into	ADP	IN	_	6	case	_	_
6	glass	glass	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **convert** | present | It | the metal |  |  |  | into glass *result* | vn turn-26.6.1-1 «NP V NP.patient PP.result»: agent=Agent metal=Patient into glass=Result |

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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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