---
title: Gas street lights first lit a London street in 1807, and electric st… — Cities: why they grow, and how water and sewers… · tree and pragmatics
description: Gas street lights first lit a London street in 1807, and electric street lights spread later in the 1800s. Who acts: street lights, electric street lights. A sentence of the lesson «Cities: why they grow, and how water and sewers made them safe» of the history course of Mova's primary school with it
---

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# Cities: why they grow, and how water and sewers made them safe, sentence 13

<!-- .ven lang=en -->
Gas street lights first lit a London street in 1807, and electric street lights spread later in the 1800s.

<!-- .vintro -->
**Who acts:** street lights, electric street lights · **What happens:** light, spread · **To what, where:** London street, 1807

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This is a sentence of the lesson «Cities: why they grow, and how water and sewers made them safe» of the history 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 (street lights, electric street lights), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:history:073-cities-why-they-grow-and-how-sewers-made-them-safe.lesson:13
# text = Gas street lights first lit a London street in 1807, and electric street lights spread later in the 1800s.
# source = school lesson (ours)
# course = history
# lesson = 073-cities-why-they-grow-and-how-sewers-made-them-safe.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	Gas	gas	NOUN	NN	Number=Sing	2	compound	_	Agree=R8-pos-agree|Haiku=2:compound|HaikuPos=PROPN:NNP:Number=Sing
2	street	street	NOUN	NN	Number=Sing	3	compound	_	_
3	lights	light	NOUN	NNS	Number=Plur	5	nsubj	_	_
4	first	first	ADV	RB	NumForm=Word|NumType=Ord	5	advmod	_	_
5	lit	light	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
7	London	London	PROPN	NNP	Number=Sing	8	compound	_	_
8	street	street	NOUN	NN	Number=Sing	5	obj	_	_
9	in	in	ADP	IN	_	10	case	_	_
10	1807	1807	NUM	CD	NumForm=Digit|NumType=Card	5	obl	_	_
11	,	,	PUNCT	,	_	16	punct	_	_
12	and	and	CCONJ	CC	_	16	cc	_	_
13	electric	electric	ADJ	JJ	Degree=Pos	15	amod	_	_
14	street	street	NOUN	NN	Number=Sing	15	compound	_	_
15	lights	light	NOUN	NNS	Number=Plur	16	nsubj	_	_
16	spread	spread	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	5	conj	_	_
17	later	late	ADV	RBR	Degree=Cmp	16	advmod	_	_
18	in	in	ADP	IN	_	20	case	_	_
19	the	the	DET	DT	Definite=Def|PronType=Art	20	det	_	_
20	1800s	1800	NOUN	NNS	Number=Ptan|NumForm=Combi|NumType=Card	17	obl	_	_
21	.	.	PUNCT	.	_	5	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 | **light** | past | street lights | a London street |  | 1807 |  | first *property* | vn preparing-26.3-1 «NP V NP»: agent=Agent street=Product |
| 2 | **spread** | past | electric street lights |  |  |  |  | late *property* | vn appear-48.1.1 «NP V»: agent=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.

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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:history:073-cities-why-they-grow-and-how-sewers-made-them-safe.lesson:13`.

**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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