---
title: John Harrison built clocks in the 1700s accurate enough to find long… — Explorers and how the world was mapped · tree and pragmatics
description: John Harrison built clocks in the 1700s accurate enough to find longitude at sea. Who acts: John. A sentence of the lesson «Explorers and how the world was mapped» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Explorers and how the world was mapped, sentence 26

<!-- .ven lang=en -->
John Harrison built clocks in the 1700s accurate enough to find longitude at sea.

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**Who acts:** John · **What happens:** build, find · **To what, where:** clocks, 1700s, longitude, sea

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This is a sentence of the lesson «Explorers and how the world was mapped» of the world 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 (John), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:098-explorers-mapping-the-world.lesson:26
# text = John Harrison built clocks in the 1700s accurate enough to find longitude at sea.
# source = school lesson (ours)
# course = world
# lesson = 098-explorers-mapping-the-world.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
1	John	John	PROPN	NNP	Number=Sing	3	nsubj	_	_
2	Harrison	Harrison	PROPN	NNP	Number=Sing	1	flat	_	_
3	built	build	VERB	VBD	Mood=Ind|Tense=Past|VerbForm=Fin	0	root	_	_
4	clocks	clock	NOUN	NNS	Number=Plur	3	obj	_	_
5	in	in	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	1700s	1700	NOUN	NNS	Number=Ptan|NumForm=Combi|NumType=Card	3	obl	_	Agree=R5-strong|Haiku=4:nmod
8	accurate	accurate	ADJ	JJ	Degree=Pos	4	amod	_	_
9	enough	enough	ADV	RB	_	8	advmod	_	_
10	to	to	PART	TO	_	11	mark	_	_
11	find	find	VERB	VB	VerbForm=Inf	8	advcl	_	_
12	longitude	longitude	NOUN	NN	Number=Sing	11	obj	_	_
13	at	at	ADP	IN	_	14	case	_	_
14	sea	sea	NOUN	NN	Number=Sing	11	obl	_	_
15	.	.	PUNCT	.	_	3	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **build** | past | John | clocks |  | the 1700s |  |  | vn build-26.1-1 «NP V NP»: agent=Agent clock=Product |
| 2 | **find** | to-infinitive | John *not said here* | longitude |  | sea |  |  | vn get-13.5.1 «NP V NP PP.source NP.asset»: agent=Agent longitude=Theme at sea=Asset |

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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:world:098-explorers-mapping-the-world.lesson:26`.

**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. **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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