---
title: Ascertain the reason for which electricity is transmitted over long… — Power stations and the grid · tree and pragmatics
description: Ascertain the reason for which electricity is transmitted over long distances at a very high voltage. Exam question 3 of lesson 32 «Power stations and the grid» of the technology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choic
---

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# Exam question 3 · Power stations and the grid

<!-- .ven lang=en -->
Ascertain the reason for which electricity is transmitted over long distances at a very high voltage.

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 1 · wrong ✗ · **Who acts:** you · **What happens:** ascertain, transmit · **To what, where:** reason, electricity, high voltage

<!-- .vabout -->
This is exam question 3 of lesson 32 «Power stations and the grid» of the technology 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/technology/32-power-stations-and-the-grid/#e3).

## The question {#question}

```conllu
# sent_id = question:technology:32-power-stations-and-the-grid:e3:1
# text = Ascertain the reason for which electricity is transmitted over long distances at a very high voltage.
1	Ascertain	ascertain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	reason	reason	NOUN	NN	Number=Sing	1	obj	_	_
4	for	for	ADP	IN	_	5	case	_	_
5	which	which	PRON	WDT	PronType=Rel	8	obl	_	_
6	electricity	electricity	NOUN	NN	Number=Sing	8	nsubj:pass	_	_
7	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	aux:pass	_	_
8	transmitted	transmit	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	acl:relcl	_	_
9	over	over	ADV	RB	_	10	advmod	_	_
10	long	long	ADJ	JJ	Degree=Pos	11	amod	_	_
11	distances	distance	NOUN	NNS	Number=Plur	8	obj	_	_
12	at	at	ADP	IN	_	16	case	_	_
13	a	a	DET	DT	Definite=Ind|PronType=Art	16	det	_	_
14	very	very	ADV	RB	_	15	advmod	_	_
15	high	high	ADJ	JJ	Degree=Pos	16	amod	_	_
16	voltage	voltage	NOUN	NN	Number=Sing	8	obl	_	SpaceAfter=No
17	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ascertain** | imperative | you *not said here* | the reason |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent reason=Topic |
| 2 | **transmit** | present · passive |  | electricity |  | a high voltage |  | for the reason | vn send-11.1-1 «NP V NP-Dative NP»: subject=Destination distance=Theme |

<!-- .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 · ✓ the right answer {#o1}

<!-- .ven lang=en -->
The quantity of energy lost in transmission is thereby reduced

```conllu
# sent_id = question:technology:32-power-stations-and-the-grid:e3:o1:1
# text = The quantity of energy lost in transmission is thereby reduced
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	quantity	quantity	NOUN	NN	Number=Sing	10	nsubj:pass	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	energy	energy	NOUN	NN	Number=Sing	2	nmod	_	_
5	lost	lose	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	2	acl	_	_
6	in	in	ADP	IN	_	7	case	_	_
7	transmission	transmission	NOUN	NN	Number=Sing	5	obl	_	_
8	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	10	aux:pass	_	_
9	thereby	thereby	ADV	RB	_	10	advmod	_	_
10	reduced	reduce	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **lose** | participle |  | the quantity of energy *not said here* |  | transmission |  |  | vn succeed-74-3-1 «NP V PP.eventuality S\_ING»: agent=Agent in transmission=Eventuality |
| 2 | **reduce** | present · passive |  | the quantity of energy |  |  |  | thereby *property* | vn limit-76 «NP V NP»: subject=Patient |

### Option 2 · ← Mova's choice {#o2}

<!-- .ven lang=en -->
Electricity of low voltage is incapable of ascending hills

```conllu
# sent_id = question:technology:32-power-stations-and-the-grid:e3:o2:1
# text = Electricity of low voltage is incapable of ascending hills
1	Electricity	electricity	NOUN	NN	Number=Sing	6	nsubj	_	_
2	of	of	ADP	IN	_	4	case	_	_
3	low	low	ADJ	JJ	Degree=Pos	4	amod	_	_
4	voltage	voltage	NOUN	NN	Number=Sing	1	nmod	_	_
5	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
6	incapable	incapable	ADJ	JJ	Degree=Pos	0	root	_	_
7	of	of	SCONJ	IN	_	8	mark	_	_
8	ascending	ascend	VERB	VBG	Tense=Pres|VerbForm=Part	6	advcl	_	_
9	hills	hill	NOUN	NNS	Number=Plur	8	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | Electricity of low voltage |  |  |  |  | incapable *property* | tree rules |
| 2 | **ascend** | gerund | Electricity of low voltage *not said here* | hills |  |  |  |  | vn escape-51.1-1-3 «NP V NP»: agent=Theme hill=Trajectory |
| 3 | **electrify** |  |  | low voltage |  |  |  |  | nom electricity «phenomenon transitive»: of=patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
The weight of the conductors is thereby reduced

```conllu
# sent_id = question:technology:32-power-stations-and-the-grid:e3:o3:1
# text = The weight of the conductors is thereby reduced
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	weight	weight	NOUN	NN	Number=Sing	8	nsubj:pass	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	conductors	conductor	NOUN	NNS	Number=Plur	2	nmod	_	_
6	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	aux:pass	_	_
7	thereby	thereby	ADV	RB	_	8	advmod	_	_
8	reduced	reduce	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **reduce** | present · passive |  | the weight of the conductors |  |  |  | thereby *property* | vn limit-76 «NP V NP»: subject=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
Birds are thereby prevented from alighting upon the conductors

```conllu
# sent_id = question:technology:32-power-stations-and-the-grid:e3:o4:1
# text = Birds are thereby prevented from alighting upon the conductors
1	Birds	bird	NOUN	NNS	Number=Plur	4	nsubj:pass	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
3	thereby	thereby	ADV	RB	_	4	advmod	_	_
4	prevented	prevent	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	from	from	SCONJ	IN	_	6	mark	_	_
6	alighting	alight	VERB	VBG	Tense=Pres|VerbForm=Part	4	advcl	_	_
7	upon	upon	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	conductors	conductor	NOUN	NNS	Number=Plur	6	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **prevent** | present · passive |  | Birds |  |  |  | thereby *property* | vn forbid-64.4-1 «NP V NP»: subject=Theme |
| 2 | **alight** | gerund |  |  |  |  |  | upon the conductors | tree rules |

<!-- 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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