---
title: Near your town, transformers in a humming substation turn the voltag… — Power stations and the grid · tree and pragmatics
description: Near your town, transformers in a humming substation turn the voltage down so it is safe enough to use in homes. Who acts: transformers, voltage. A sentence of the lesson «Power stations and the grid» of the technology course of Mova's primary school with its dependency tree and the pragmatics of ev
---

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# Power stations and the grid, sentence 3

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Near your town, transformers in a humming substation turn the voltage down so it is safe enough to use in homes.

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**Who acts:** transformers, voltage · **What happens:** turn down, be, use · **To what, where:** voltage, town, homes

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This is a sentence of the lesson «Power stations and the grid» of the technology course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (transformers, voltage), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:technology:032-power-stations-and-the-grid.lesson:3
# text = Near your town, transformers in a humming substation turn the voltage down so it is safe enough to use in homes.
# source = school lesson (ours)
# course = technology
# lesson = 032-power-stations-and-the-grid.lesson
# annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R8-pos-agree ×1
1	Near	near	ADP	IN	_	3	case	_	_
2	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	3	nmod:poss	_	_
3	town	town	NOUN	NN	Number=Sing	10	obl	_	_
4	,	,	PUNCT	,	_	3	punct	_	_
5	transformers	transformer	NOUN	NNS	Number=Plur	10	nsubj	_	_
6	in	in	ADP	IN	_	9	case	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
8	humming	humming	NOUN	NN	Number=Sing	9	compound	_	_
9	substation	substation	NOUN	NN	Number=Sing	5	nmod	_	_
10	turn	turn	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	Agree=R8-pos-agree|Haiku=0:root|HaikuPos=VERB:VB:Mood=Imp|VerbForm=Fin
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	voltage	voltage	NOUN	NN	Number=Sing	10	obj	_	_
13	down	down	ADP	RP	_	10	compound:prt	_	_
14	so	so	ADV	RB	_	17	advmod	_	_
15	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	17	nsubj	_	_
16	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	17	cop	_	_
17	safe	safe	ADJ	JJ	Degree=Pos	10	parataxis	_	_
18	enough	enough	ADV	RB	_	17	advmod	_	_
19	to	to	PART	TO	_	20	mark	_	_
20	use	use	VERB	VB	VerbForm=Inf	17	advcl	_	_
21	in	in	ADP	IN	_	22	case	_	_
22	homes	home	NOUN	NNS	Number=Plur	20	obl	_	_
23	.	.	PUNCT	.	_	10	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **turn down** | present | transformers in a humming substation | the voltage |  | your town |  |  | vn reject-77.2 «NP V NP»: agent=Agent voltage=Theme |
| 2 | **is** | present | voltage |  |  |  |  | enough, safe *property* | tree rules |
| 3 | **use** | to-infinitive | voltage *not said here* |  |  | homes |  |  | vn eat-39.1 «NP V»: agent=Agent |

<!-- .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.

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**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:technology:032-power-stations-and-the-grid.lesson:3`.

**The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R8-pos-agree ×1. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/).

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