---
title: Olympus Mons on Mars is the tallest volcano in the Solar System, abo… — Mars · tree and pragmatics
description: Olympus Mons on Mars is the tallest volcano in the Solar System, about 22 kilometres high, about two and a half times the height of Everest above sea level. Who acts: Olympus Mons. A sentence of the lesson «Mars» of the space course of Mova's primary school with its dependency tree and the pragmatic
---

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# Mars, sentence 8

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Olympus Mons on Mars is the tallest volcano in the Solar System, about 22 kilometres high, about two and a half times the height of Everest above sea level.

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**Who acts:** Olympus Mons · **What happens:** be · **To what, where:** tallest volcano, Solar System

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This is a sentence of the lesson «Mars» of the space 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 (Olympus Mons), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:space:008-mars.lesson:8
# text = Olympus Mons on Mars is the tallest volcano in the Solar System, about 22 kilometres high, about two and a half times the height of Everest above sea level.
# source = school lesson (ours)
# course = space
# lesson = 008-mars.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, R6-punct-agree ×1, R7-rel-agree ×3, R8-pos-agree ×1
1	Olympus	Olympus	PROPN	NNP	Number=Sing	2	compound	_	_
2	Mons	Mons	PROPN	NNP	Number=Plur	8	nsubj	_	_
3	on	on	ADP	IN	_	4	case	_	_
4	Mars	Mars	PROPN	NNP	Number=Sing	2	nmod	_	_
5	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
7	tallest	tall	ADJ	JJS	Degree=Sup	8	amod	_	_
8	volcano	volcano	NOUN	NN	Number=Sing	0	root	_	_
9	in	in	ADP	IN	_	12	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
11	Solar	solar	PROPN	NNP	Number=Sing	12	compound	_	Agree=R7-rel-agree|Haiku=12:amod|HaikuPos=ADJ:JJ:Degree=Pos
12	System	System	PROPN	NNP	Number=Sing	8	nmod	_	_
13	,	,	PUNCT	,	_	8	punct	_	_
14	about	about	ADV	RB	_	15	advmod	_	_
15	22	22	NUM	CD	NumForm=Digit|NumType=Card	16	nummod	_	_
16	kilometres	kilometre	NOUN	NNS	Number=Plur	17	obl	_	Agree=R7-rel-agree|Haiku=17:nmod:unmarked
17	high	high	ADJ	JJ	Degree=Pos	8	amod	_	Agree=R7-rel-agree|Haiku=8:appos
18	,	,	PUNCT	,	_	26	punct	_	Agree=R6-punct-agree|Haiku=8:punct
19	about	about	ADV	RB	_	20	advmod	_	_
20	two	two	NUM	CD	NumForm=Word|NumType=Card	17	conj	_	_
21	and	and	CCONJ	CC	_	20	cc	_	_
22	a	a	DET	DT	Definite=Ind|PronType=Art	23	det	_	Agree=R5-strong|Haiku=24:det
23	half	half	NOUN	NN	Number=Sing|NumForm=Word|NumType=Frac	24	compound	_	_
24	times	time	NOUN	NNS	Number=Plur	31	nmod:unmarked	_	_
25	the	the	DET	DT	Definite=Def|PronType=Art	26	det	_	_
26	height	height	NOUN	NN	Number=Sing	31	nsubj	_	_
27	of	of	ADP	IN	_	28	case	_	_
28	Everest	Everest	PROPN	NNP	Number=Sing	26	nmod	_	Agree=R8-pos-agree|Haiku=26:nmod|HaikuPos=NOUN:NN:Number=Sing
29	above	above	ADP	IN	_	31	case	_	_
30	sea	sea	NOUN	NN	Number=Sing	31	compound	_	_
31	level	level	NOUN	NN	Number=Sing	20	conj	_	_
32	.	.	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 | **is a** | present | Olympus Mons on Mars | the tallest volcano |  | the Solar System |  |  | tree rules |

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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:space:008-mars.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): R5-strong ×1, R6-punct-agree ×1, R7-rel-agree ×3, 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/).

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