---
title: A delta forms where a river drops its sediment at the mouth faster t… — Rivers shaping the land · tree and pragmatics
description: A delta forms where a river drops its sediment at the mouth faster than the sea can carry it away. Who acts: delta, river, sea. A sentence of the lesson «Rivers shaping the land» of the geography course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Rivers shaping the land, sentence 14

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A delta forms where a river drops its sediment at the mouth faster than the sea can carry it away.

<!-- .vintro -->
**Who acts:** delta, river, sea · **What happens:** form, drop, carry away · **To what, where:** sediment, mouth, river

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This is a sentence of the lesson «Rivers shaping the land» 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 (delta, river, sea), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:geography:053-rivers-shaping-the-land.lesson:14
# text = A delta forms where a river drops its sediment at the mouth faster than the sea can carry it away.
# source = school lesson (ours)
# course = geography
# lesson = 053-rivers-shaping-the-land.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	2	det	_	_
2	delta	delta	NOUN	NN	Number=Sing	3	nsubj	_	_
3	forms	form	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	where	where	ADV	WRB	PronType=Rel	7	obl	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	river	river	NOUN	NN	Number=Sing	7	nsubj	_	_
7	drops	drop	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	advcl	_	_
8	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	9	nmod:poss	_	_
9	sediment	sediment	NOUN	NN	Number=Sing	7	obj	_	_
10	at	at	ADP	IN	_	12	case	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	mouth	mouth	NOUN	NN	Number=Sing	7	obl	_	_
13	faster	fast	ADV	RBR	Degree=Cmp	7	advmod	_	_
14	than	than	SCONJ	IN	_	18	mark	_	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
16	sea	sea	NOUN	NN	Number=Sing	18	nsubj	_	_
17	can	can	AUX	MD	VerbForm=Fin	18	aux	_	_
18	carry	carry	VERB	VB	VerbForm=Inf	13	advcl	_	_
19	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	18	obj	_	_
20	away	away	ADV	RB	_	18	advmod	_	_
21	.	.	PUNCT	.	_	3	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **form** | present | a delta |  |  |  |  |  | vn appear-48.1.1 «NP V»: agent=Theme |
| 2 | **drop** | present | a river | river's sediment |  | the mouth |  | fast *property* | vn put\_direction-9.4 «NP V NP PP.destination»: agent=Agent sediment=Theme at mouth=Destination |
| 3 | **carry away** | can | the sea | river |  |  |  | away *property* | vn carry-11.4 «NP V NP»: agent=Agent it=Theme |

<!-- .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:053-rivers-shaping-the-land.lesson:14`.

**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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