---
title: A solar eclipse can happen only at new moon. — Eclipses · tree and pragmatics
description: A solar eclipse can happen only at new moon. Who acts: solar eclipse. A sentence of the lesson «Eclipses» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Eclipses, sentence 8

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A solar eclipse can happen only at new moon.

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**Who acts:** solar eclipse · **What happens:** happen · **To what, where:** new moon

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This is a sentence of the lesson «Eclipses» 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 (solar eclipse), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:008-eclipses.lesson:8
# text = A solar eclipse can happen only at new moon.
# source = school lesson (ours)
# course = world
# lesson = 008-eclipses.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): no change
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	solar	solar	ADJ	JJ	Degree=Pos	3	amod	_	_
3	eclipse	eclipse	NOUN	NN	Number=Sing	5	nsubj	_	_
4	can	can	AUX	MD	VerbForm=Fin	5	aux	_	_
5	happen	happen	VERB	VB	VerbForm=Inf	0	root	_	_
6	only	only	ADV	RB	_	9	advmod	_	_
7	at	at	ADP	IN	_	9	case	_	_
8	new	new	ADJ	JJ	Degree=Pos	9	amod	_	_
9	moon	moon	NOUN	NN	Number=Sing	5	obl	_	_
10	.	.	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 | **happen** | can | a solar eclipse |  |  | new moon |  |  | vn occur-48.3-1 «NP V PP»: agent=Theme at moon=Location |

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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:008-eclipses.lesson:8`.

**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): no change. **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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- ← previous: [Eclipses, 7](https://md.mova.elamur.ai/free/en/corpora/school/world/8-eclipses/7/)
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