---
title: Electricity flows only round a complete loop called a circuit; a swi… — Batteries, circuits and how electricity flows · tree and pragmatics
description: Electricity flows only round a complete loop called a circuit; a switch opens or closes a gap in that loop. Who acts: Electricity, complete loop, switch. A sentence of the lesson «Batteries, circuits and how electricity flows» of the physics course of Mova's primary school with its dependency tree a
---

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# Batteries, circuits and how electricity flows, sentence 5

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Electricity flows only round a complete loop called a circuit; a switch opens or closes a gap in that loop.

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**Who acts:** Electricity, complete loop, switch · **What happens:** flow, call, open, close · **To what, where:** circuit, gap · **Speech:** someone speaks here

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This is a sentence of the lesson «Batteries, circuits and how electricity flows» of the physics 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 (Electricity, complete loop, switch), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:physics:027-batteries-circuits-and-how-electricity-flows.lesson:5
# text = Electricity flows only round a complete loop called a circuit; a switch opens or closes a gap in that loop.
# source = school lesson (ours)
# course = physics
# lesson = 027-batteries-circuits-and-how-electricity-flows.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): R5-strong ×1, R7-rel-agree ×1
1	Electricity	electricity	NOUN	NN	Number=Sing	2	nsubj	_	_
2	flows	flow	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	only	only	ADV	RB	_	7	advmod	_	_
4	round	round	ADP	IN	_	7	case	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
6	complete	complete	ADJ	JJ	Degree=Pos	7	amod	_	_
7	loop	loop	NOUN	NN	Number=Sing	2	obl	_	_
8	called	call	VERB	VBN	Tense=Past|VerbForm=Part	7	acl	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
10	circuit	circuit	NOUN	NN	Number=Sing	8	obj	_	_
11	;	;	PUNCT	,	_	14	punct	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
13	switch	switch	NOUN	NN	Number=Sing	14	nsubj	_	_
14	opens	open	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	parataxis	_	Agree=R7-rel-agree|Haiku=2:conj
15	or	or	CCONJ	CC	_	16	cc	_	_
16	closes	close	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	conj	_	_
17	a	a	DET	DT	Definite=Ind|PronType=Art	18	det	_	_
18	gap	gap	NOUN	NN	Number=Sing	16	obj	_	_
19	in	in	ADP	IN	_	21	case	_	_
20	that	that	DET	DT	Number=Sing|PronType=Dem	21	det	_	_
21	loop	loop	NOUN	NN	Number=Sing	18	nmod	_	Agree=R5-strong|Haiku=16:obl
22	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

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No stored speech act for this sentence.

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **flow** | present | Electricity |  |  |  |  | round a complete loop | vn appear-48.1.1 «NP V»: agent=Theme |
| 2 | **call** | participle | a complete loop *not said here* | a circuit |  |  |  |  | vn initiate\_communication-37.4.2-1 «NP V NP.recipient»: agent=Agent circuit=Recipient |
| 3 | **open** | present | a switch |  |  |  |  |  | vn spatial\_configuration-47.6-1 «NP V»: agent=Theme |
| 4 | **close** | present | a switch *not said here* | a gap |  |  |  | in that loop | vn crane-40.3.2 «NP V NP PP.recipient PP.theme»: agent=Agent gap=Patient in loop=Topic |

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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:physics:027-batteries-circuits-and-how-electricity-flows.lesson:5`.

**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): R5-strong ×1, R7-rel-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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