---
title: Glaciers form where more snow falls than melts, year after year. — Glaciers, ice ages and polar lands · tree and pragmatics
description: Glaciers form where more snow falls than melts, year after year. Who acts: Glaciers, more snow. A sentence of the lesson «Glaciers, ice ages and polar lands» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/world/65-glaciers-ice-ages-polar-lands/11/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [World](https://md.mova.elamur.ai/free/en/corpora/school/world/) / [Glaciers, ice ages and polar lands](https://md.mova.elamur.ai/free/en/corpora/school/world/65-glaciers-ice-ages-polar-lands/) / 11

# Glaciers, ice ages and polar lands, sentence 11

<!-- .ven lang=en -->
Glaciers form where more snow falls than melts, year after year.

<!-- .vintro -->
**Who acts:** Glaciers, more snow · **What happens:** form, fall, melt

<!-- .vabout -->
This is a sentence of the lesson «Glaciers, ice ages and polar lands» 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 (Glaciers, more snow), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:065-glaciers-ice-ages-polar-lands.lesson:11
# text = Glaciers form where more snow falls than melts, year after year.
# source = school lesson (ours)
# course = world
# lesson = 065-glaciers-ice-ages-polar-lands.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 ×1, R8-pos-agree ×1
1	Glaciers	glacier	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	form	form	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	where	where	ADV	WRB	PronType=Rel	6	advmod	_	_
4	more	more	ADJ	JJR	Degree=Cmp	5	amod	_	_
5	snow	snow	NOUN	NN	Number=Sing	6	nsubj	_	_
6	falls	fall	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	advcl	_	Agree=R7-rel-agree|Haiku=2:ccomp
7	than	than	ADP	IN	_	8	mark	_	Agree=R8-pos-agree|Haiku=8:mark|HaikuPos=SCONJ:IN:_
8	melts	melt	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	advcl	_	_
9	,	,	PUNCT	,	_	10	punct	_	_
10	year	year	NOUN	NN	Number=Sing	12	conj	_	_
11	after	after	ADP	IN	_	12	case	_	_
12	year	year	NOUN	NN	Number=Sing	6	obl	_	_
13	.	.	PUNCT	.	_	2	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 | **form** | present | Glaciers |  |  |  |  |  | vn appear-48.1.1 «NP V»: agent=Theme |
| 2 | **fall** | present | more snow |  |  |  | year |  | vn occur-48.3 «NP V»: agent=Theme |
| 3 | **melt** | present | more snow *not said here* |  |  |  |  |  | vn other\_cos-45.4-1 «NP.patient V»: agent=Patient |

<!-- .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.

<!-- div src -->

**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:065-glaciers-ice-ages-polar-lands.lesson:11`.

**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 ×1, 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/).

<!-- /div -->

<!-- pn -->
- ← previous: [Glaciers, ice ages and polar lands, 10](https://md.mova.elamur.ai/free/en/corpora/school/world/65-glaciers-ice-ages-polar-lands/10/)
- next →: [Glaciers, ice ages and polar lands, 12](https://md.mova.elamur.ai/free/en/corpora/school/world/65-glaciers-ice-ages-polar-lands/12/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/world/65-glaciers-ice-ages-polar-lands/)

