---
title: In 1656 Christiaan Huygens built a pendulum clock, far more accurate… — Pendulums, Greenwich and railway time, atomic cl… · tree and pragmatics
description: In 1656 Christiaan Huygens built a pendulum clock, far more accurate than any clock before. Who acts: Christiaan. A sentence of the lesson «Pendulums, Greenwich and railway time, atomic clocks and phones» of the world course of Mova's primary school with its dependency tree and the pragmatics of eve
---

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# Pendulums, Greenwich and railway time, atomic clocks and phones, sentence 12

<!-- .ven lang=en -->
In 1656 Christiaan Huygens built a pendulum clock, far more accurate than any clock before.

<!-- .vintro -->
**Who acts:** Christiaan · **What happens:** build · **To what, where:** pendulum clock, 1656

<!-- .vabout -->
This is a sentence of the lesson «Pendulums, Greenwich and railway time, atomic clocks and phones» 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 (Christiaan), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:123-pendulums-greenwich-atomic-clocks.lesson:12
# text = In 1656 Christiaan Huygens built a pendulum clock, far more accurate than any clock before.
# source = school lesson (ours)
# course = world
# lesson = 123-pendulums-greenwich-atomic-clocks.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): R7-rel-agree ×1
1	In	in	ADP	IN	_	2	case	_	_
2	1656	1656	NUM	CD	NumForm=Digit|NumType=Card	5	obl	_	_
3	Christiaan	Christiaan	PROPN	NNP	Number=Sing	5	nsubj	_	_
4	Huygens	Huygens	PROPN	NNP	Number=Sing	3	flat	_	_
5	built	build	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
7	pendulum	pendulum	NOUN	NN	Number=Sing	8	compound	_	_
8	clock	clock	NOUN	NN	Number=Sing	5	obj	_	_
9	,	,	PUNCT	,	_	12	punct	_	_
10	far	far	ADV	RB	Degree=Pos	11	advmod	_	_
11	more	more	ADV	RBR	Degree=Cmp	12	advmod	_	_
12	accurate	accurate	ADJ	JJ	Degree=Pos	8	amod	_	Agree=R7-rel-agree|Haiku=8:appos
13	than	than	ADP	IN	_	15	case	_	_
14	any	any	DET	DT	PronType=Ind	15	det	_	_
15	clock	clock	NOUN	NN	Number=Sing	12	obl	_	_
16	before	before	ADV	RB	_	12	advmod	_	_
17	.	.	PUNCT	.	_	5	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- sa -->
- 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 | Christiaan | a pendulum clock |  | 1656 |  |  | vn build-26.1-1 «NP V NP»: agent=Agent clock=Product |

<!-- .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:world:123-pendulums-greenwich-atomic-clocks.lesson:12`.

**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): 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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