---
title: A desert is a place where very little rain or snow falls, so Antarct… — Thinking like a geographer: rivers, mountains an… · tree and pragmatics
description: A desert is a place where very little rain or snow falls, so Antarctica is also a desert. Who acts: desert, little rain, Antarctica. A sentence of the lesson «Thinking like a geographer: rivers, mountains and deserts» of the world course of Mova's primary school with its dependency tree and the prag
---

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# Thinking like a geographer: rivers, mountains and deserts, sentence 16

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A desert is a place where very little rain or snow falls, so Antarctica is also a desert.

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**Who acts:** desert, little rain, Antarctica · **What happens:** be, fall · **To what, where:** place, desert

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This is a sentence of the lesson «Thinking like a geographer: rivers, mountains and deserts» 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 (desert, little rain, Antarctica), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:050-why-the-earth-is-so.lesson:16
# text = A desert is a place where very little rain or snow falls, so Antarctica is also a desert.
# source = school lesson (ours)
# course = world
# lesson = 050-why-the-earth-is-so.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 ×2
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	desert	desert	NOUN	NN	Number=Sing	5	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	place	place	NOUN	NN	Number=Sing	0	root	_	_
6	where	where	ADV	WRB	PronType=Rel	12	advmod	_	_
7	very	very	ADV	RB	_	8	advmod	_	_
8	little	little	ADJ	JJ	Degree=Pos	9	amod	_	_
9	rain	rain	NOUN	NN	Number=Sing	12	nsubj	_	_
10	or	or	CCONJ	CC	_	11	cc	_	_
11	snow	snow	NOUN	NN	Number=Sing	9	conj	_	_
12	falls	fall	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	acl:relcl	_	_
13	,	,	PUNCT	,	_	19	punct	_	_
14	so	so	ADV	RB	_	19	advmod	_	Agree=R7-rel-agree|Haiku=19:mark|HaikuPos=SCONJ:IN:_
15	Antarctica	Antarctica	PROPN	NNP	Number=Sing	19	nsubj	_	_
16	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	19	cop	_	_
17	also	also	ADV	RB	_	19	advmod	_	_
18	a	a	DET	DT	Definite=Ind|PronType=Art	19	det	_	_
19	desert	desert	NOUN	NN	Number=Sing	5	parataxis	_	Agree=R7-rel-agree|Haiku=5:conj
20	.	.	PUNCT	.	_	5	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | a desert | a place |  |  |  |  | tree rules |
| 2 | **fall** | present | little rain or snow |  |  |  |  |  | vn occur-48.3 «NP V»: agent=Theme |
| 3 | **is a** | present | Antarctica | a desert |  |  |  |  | tree rules |

<!-- .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:050-why-the-earth-is-so.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): R7-rel-agree ×2. **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: [Thinking like a geographer: rivers, mo…, 15](https://md.mova.elamur.ai/free/en/corpora/school/world/50-why-the-earth-is-so/15/)
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- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/world/50-why-the-earth-is-so/)