---
title: Waves hitting a beach at an angle move sand along the coast, a proce… — Coasts and caves · tree and pragmatics
description: Waves hitting a beach at an angle move sand along the coast, a process called longshore drift. Who acts: Waves, process. A sentence of the lesson «Coasts and caves» of the geography course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Coasts and caves, sentence 10

<!-- .ven lang=en -->
Waves hitting a beach at an angle move sand along the coast, a process called longshore drift.

<!-- .vintro -->
**Who acts:** Waves, process · **What happens:** hit, move, call · **To what, where:** beach, angle, sand, coast, longshore drift · **Speech:** someone speaks here

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This is a sentence of the lesson «Coasts and caves» of the geography 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 (Waves, process), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:geography:055-coasts-and-caves.lesson:10
# text = Waves hitting a beach at an angle move sand along the coast, a process called longshore drift.
# source = school lesson (ours)
# course = geography
# lesson = 055-coasts-and-caves.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	Waves	wave	NOUN	NNS	Number=Plur	8	nsubj	_	_
2	hitting	hit	VERB	VBG	Tense=Pres|VerbForm=Part	1	acl	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
4	beach	beach	NOUN	NN	Number=Sing	2	obj	_	_
5	at	at	ADP	IN	_	7	case	_	_
6	an	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
7	angle	angle	NOUN	NN	Number=Sing	2	obl	_	_
8	move	move	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
9	sand	sand	NOUN	NN	Number=Sing	8	obj	_	_
10	along	along	ADP	IN	_	12	case	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	coast	coast	NOUN	NN	Number=Sing	8	obl	_	_
13	,	,	PUNCT	,	_	15	punct	_	_
14	a	a	DET	DT	Definite=Ind|PronType=Art	15	det	_	_
15	process	process	NOUN	NN	Number=Sing	8	parataxis	_	Agree=R5-strong|Haiku=12:appos
16	called	call	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	15	acl	_	_
17	longshore	longshore	ADJ	JJ	Degree=Pos	18	amod	_	_
18	drift	drift	NOUN	NN	Number=Sing	16	xcomp	_	_
19	.	.	PUNCT	.	_	8	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 | **hit** | gerund | Waves *not said here* | a beach |  | a angle |  |  | vn throw-17.1-1 «NP V NP PP.destinations»: agent=Agent beach=Theme at angle=Destination |
| 2 | **move** | present | Waves | sand |  | the coast |  |  | vn roll-51.3.1 «NP V NP PP.trajectory»: agent=Agent sand=Theme along coast=Trajectory |
| 3 | **call** | participle | a process *not said here* | longshore drift |  |  |  |  | vn initiate\_communication-37.4.2-1 «NP V»: agent=Agent |

<!-- .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:geography:055-coasts-and-caves.lesson:10`.

**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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