---
title: The Earth turns 15 degrees an hour, so each hour of difference betwe… — Pendulums, Greenwich and railway time, atomic cl… · tree and pragmatics
description: The Earth turns 15 degrees an hour, so each hour of difference between home time and local Sun time means 15 degrees east or west. Who acts: Earth, home time. A sentence of the lesson «Pendulums, Greenwich and railway time, atomic clocks and phones» of the world course of Mova's primary school with 
---

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# Pendulums, Greenwich and railway time, atomic clocks and phones, sentence 16

<!-- .ven lang=en -->
The Earth turns 15 degrees an hour, so each hour of difference between home time and local Sun time means 15 degrees east or west.

<!-- .vintro -->
**Who acts:** Earth, home time · **What happens:** turn, mean · **To what, where:** 15 degrees

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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 (Earth, home time), 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:16
# text = The Earth turns 15 degrees an hour, so each hour of difference between home time and local Sun time means 15 degrees east or west.
# 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): R5-strong ×2, R8-pos-agree ×1
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	Agree=R5-strong|Haiku=3:det
2	Earth	Earth	PROPN	NNP	Number=Sing	3	nsubj	_	Agree=R8-pos-agree|Haiku=3:nsubj|HaikuPos=NOUN:NN:Number=Sing
3	turns	turn	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	15	15	NUM	CD	NumForm=Digit|NumType=Card	5	nummod	_	_
5	degrees	degree	NOUN	NNS	Number=Plur	3	obj	_	_
6	an	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
7	hour	hour	NOUN	NN	Number=Sing	3	obl:unmarked	_	_
8	,	,	PUNCT	,	_	11	punct	_	_
9	so	so	ADV	RB	_	11	advmod	_	_
10	each	each	DET	DT	PronType=Tot	11	det	_	_
11	hour	hour	NOUN	NN	Number=Sing	3	conj	_	_
12	of	of	ADP	IN	_	13	case	_	_
13	difference	difference	NOUN	NN	Number=Sing	11	nmod	_	_
14	between	between	ADP	IN	_	16	case	_	_
15	home	home	NOUN	NN	Number=Sing	16	compound	_	_
16	time	time	NOUN	NN	Number=Sing	11	nmod	_	_
17	and	and	CCONJ	CC	_	21	cc	_	_
18	local	local	ADJ	JJ	Degree=Pos	20	amod	_	_
19	Sun	Sun	PROPN	NNP	Number=Sing	20	compound	_	_
20	time	time	NOUN	NN	Number=Sing	16	conj	_	Agree=R5-strong|Haiku=21:nsubj
21	means	mean	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	16	acl:relcl	_	_
22	15	15	NUM	CD	NumForm=Digit|NumType=Card	23	nummod	_	_
23	degrees	degree	NOUN	NNS	Number=Plur	21	obj	_	_
24	east	east	ADV	RB	_	23	advmod	_	_
25	or	or	CCONJ	CC	_	26	cc	_	_
26	west	west	ADV	RB	_	24	conj	_	_
27	.	.	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 | **turn** | present | the Earth | 15 degrees |  |  | hour |  | vn roll-51.3.1 «NP V NP.theme»: agent=Agent degree=Theme |
| 2 | **mean** | present | home time and local Sun time *not said here* | 15 degrees |  |  |  |  | vn intend-61.2-1 «NP V NP»: agent=Agent degree=Topic |

<!-- .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:16`.

**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 ×2, 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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