---
title: The habitable or "Goldilocks" zone is the band around a star where a… — Exoplanets and the search for life · tree and pragmatics
description: The habitable or "Goldilocks" zone is the band around a star where a planet could have liquid water on its surface, not too hot and not too cold. Who acts: habitable zone, planet. A sentence of the lesson «Exoplanets and the search for life» of the space course of Mova's primary school with its depe
---

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# Exoplanets and the search for life, sentence 10

<!-- .ven lang=en -->
The habitable or "Goldilocks" zone is the band around a star where a planet could have liquid water on its surface, not too hot and not too cold.

<!-- .vintro -->
**Who acts:** habitable zone, planet · **What happens:** be, have · **To what, where:** band, star, liquid water, surface

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This is a sentence of the lesson «Exoplanets and the search for life» 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 (habitable zone, planet), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:space:026-exoplanets-and-the-search-for-life.lesson:10
# text = The habitable or "Goldilocks" zone is the band around a star where a planet could have liquid water on its surface, not too hot and not too cold.
# source = school lesson (ours)
# course = space
# lesson = 026-exoplanets-and-the-search-for-life.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): R6-punct-agree ×1
1	The	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
2	habitable	habitable	ADJ	JJ	Degree=Pos	7	amod	_	_
3	or	or	CCONJ	CC	_	5	cc	_	_
4	"	"	PUNCT	``	_	5	punct	_	_
5	Goldilocks	goldilock	PROPN	NNPS	Number=Plur	2	conj	_	_
6	"	"	PUNCT	''	_	5	punct	_	Agree=R6-punct-agree|Haiku=2:punct
7	zone	zone	NOUN	NN	Number=Sing	10	nsubj	_	_
8	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	10	cop	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	band	band	NOUN	NN	Number=Sing	0	root	_	_
11	around	around	ADP	IN	_	13	case	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
13	star	star	NOUN	NN	Number=Sing	10	nmod	_	_
14	where	where	ADV	WRB	PronType=Rel	18	advmod	_	_
15	a	a	DET	DT	Definite=Ind|PronType=Art	16	det	_	_
16	planet	planet	NOUN	NN	Number=Sing	18	nsubj	_	_
17	could	could	AUX	MD	VerbForm=Fin	18	aux	_	_
18	have	have	VERB	VB	VerbForm=Inf	13	acl:relcl	_	_
19	liquid	liquid	ADJ	JJ	Degree=Pos	20	amod	_	_
20	water	water	NOUN	NN	Number=Sing	18	obj	_	_
21	on	on	ADP	IN	_	23	case	_	_
22	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	23	nmod:poss	_	_
23	surface	surface	NOUN	NN	Number=Sing	18	obl	_	_
24	,	,	PUNCT	,	_	27	punct	_	_
25	not	not	PART	RB	Polarity=Neg	27	advmod	_	_
26	too	too	ADV	RB	_	27	advmod	_	_
27	hot	hot	ADJ	JJ	Degree=Pos	18	conj	_	_
28	and	and	CCONJ	CC	_	31	cc	_	_
29	not	not	PART	RB	Polarity=Neg	31	advmod	_	_
30	too	too	ADV	RB	_	31	advmod	_	_
31	cold	cold	ADJ	JJ	Degree=Pos	27	conj	_	_
32	.	.	PUNCT	.	_	10	punct	_	_
```

## Pragmatics {#pragmatics}

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

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | the habitable zone | the band |  | a star |  |  | tree rules |
| 2 | **have** | could | a planet | liquid water |  | planet's surface |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent water=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.

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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:026-exoplanets-and-the-search-for-life.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): R6-punct-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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