---
title: A town builds a dam on a river to make electricity. What kind of ene… — Energy — where it comes from and how t… · tree and pragmatics
description: A town builds a dam on a river to make electricity. What kind of energy source is it using? Test 1 of lesson 56 «Energy — where it comes from and how to save it» 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 wa
---

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# Test 1 · Energy — where it comes from and how to save it

<!-- .ven lang=en -->
A town builds a dam on a river to make electricity. What kind of energy source is it using?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** town, kind · **What happens:** build, make, use · **To what, where:** dam, river, electricity, kind

<!-- .vabout -->
This is test 1 of lesson 56 «Energy — where it comes from and how to save it» 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/56-energy/#t1).

## The question {#question}

<!-- .note -->
*Sentence 1:* A town builds a dam on a river to make electricity.

```conllu
# sent_id = question:world:56-energy:t1:1
# text = A town builds a dam on a river to make electricity.
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	town	town	NOUN	NN	Number=Sing	3	nsubj	_	_
3	builds	build	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	dam	dam	NOUN	NN	Number=Sing	3	obj	_	_
6	on	on	ADP	IN	_	8	case	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	river	river	NOUN	NN	Number=Sing	3	obl	_	_
9	to	to	PART	TO	_	10	mark	_	_
10	make	make	VERB	VB	VerbForm=Inf	3	advcl	_	_
11	electricity	electricity	NOUN	NN	Number=Sing	10	obj	_	SpaceAfter=No
12	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **build** | present | a town | a dam |  | a river |  |  | vn base-97.1 «NP V NP PP.source»: agent=Agent dam=Theme on river=Source |
| 2 | **make** | to-infinitive | a town *not said here* | electricity |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset electricity=Product |

<!-- .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:* What kind of energy source is it using?

```conllu
# sent_id = question:world:56-energy:t1:2
# text = What kind of energy source is it using?
1	What	what	DET	WDT	PronType=Int	2	det	_	_
2	kind	kind	NOUN	NN	Number=Sing	8	obj	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	energy	energy	NOUN	NN	Number=Sing	5	compound	_	_
5	source	source	NOUN	NN	Number=Sing	2	nmod	_	_
6	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	aux	_	_
7	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	8	nsubj	_	_
8	using	use	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	SpaceAfter=No
9	?	?	PUNCT	.	_	8	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **use** | present · progressive | kind | what kind of energy source |  |  |  |  | vn eat-39.1 «NP V NP»: agent=Agent kind=Patient |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Energy made from nothing

```conllu
# sent_id = question:world:56-energy:t1:o1:1
# text = Energy made from nothing
1	Energy	energy	NOUN	NN	Number=Sing	0	root	_	_
2	made	make	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	1	acl	_	_
3	from	from	ADP	IN	_	4	case	_	_
4	nothing	nothing	PRON	NN	Number=Sing|PronType=Neg	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | participle |  | Energy *not said here* |  | nothing |  |  | vn build-26.1-1 «NP.asset V PP»: agent=Asset from nothing=Material |

### Option 2 · ✓ the right answer {#o2}

<!-- .ven lang=en -->
A renewable one, flowing water

```conllu
# sent_id = question:world:56-energy:t1:o2:1
# text = A renewable one, flowing water
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	renewable	renewable	ADJ	JJ	Degree=Pos	3	amod	_	_
3	one	one	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
4	,	,	PUNCT	,	_	5	punct	_	_
5	flowing	flow	VERB	VBG	VerbForm=Ger	6	amod	_	_
6	water	water	NOUN	NN	Number=Sing	3	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **flow** | gerund |  |  |  |  |  |  | vn appear-48.1.1 «NP V»: agent=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
A fossil fuel from the riverbed

```conllu
# sent_id = question:world:56-energy:t1:o3:1
# text = A fossil fuel from the riverbed
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	fossil	fossil	NOUN	NN	Number=Sing	3	compound	_	_
3	fuel	fuel	NOUN	NN	Number=Sing	0	root	_	_
4	from	from	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	riverbed	riverbed	NOUN	NN	Number=Sing	3	nmod	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
A non-renewable one, like coal

```conllu
# sent_id = question:world:56-energy:t1:o4:1
# text = A non-renewable one, like coal
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	non-renewable	non-renewable	ADJ	JJ	Degree=Pos	3	amod	_	_
3	one	one	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
4	,	,	PUNCT	,	_	6	punct	_	_
5	like	like	ADP	IN	_	6	case	_	_
6	coal	coal	NOUN	NN	Number=Sing	3	conj	_	_
```

<!-- .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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- ← previous: [Electricity — circuits, switches and s…, exam 4](https://md.mova.elamur.ai/free/en/corpora/questions/world/55-electricity/e4/)
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