---
title: Skyscraper windows are cleaned from a cradle that hangs from rails o… — Bridges and skyscrapers · tree and pragmatics
description: Skyscraper windows are cleaned from a cradle that hangs from rails on the roof and moves down the building, and some buildings use robot cleaners. Who acts: cradle, buildings. A sentence of the lesson «Bridges and skyscrapers» of the technology course of Mova's primary school with its dependency tre
---

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# Bridges and skyscrapers, sentence 19

<!-- .ven lang=en -->
Skyscraper windows are cleaned from a cradle that hangs from rails on the roof and moves down the building, and some buildings use robot cleaners.

<!-- .vintro -->
**Who acts:** cradle, buildings · **What happens:** clean, hang, move down, use · **To what, where:** Skyscraper windows, cradle, rails, building, robot cleaners

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This is a sentence of the lesson «Bridges and skyscrapers» of the technology 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 (cradle, buildings), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:technology:030-bridges-and-skyscrapers.lesson:19
# text = Skyscraper windows are cleaned from a cradle that hangs from rails on the roof and moves down the building, and some buildings use robot cleaners.
# source = school lesson (ours)
# course = technology
# lesson = 030-bridges-and-skyscrapers.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
1	Skyscraper	skyscraper	NOUN	NN	Number=Sing	2	compound	_	_
2	windows	window	NOUN	NNS	Number=Plur	4	nsubj:pass	_	_
3	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
4	cleaned	clean	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	from	from	ADP	IN	_	7	case	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
7	cradle	cradle	NOUN	NN	Number=Sing	4	obl	_	_
8	that	that	PRON	WDT	PronType=Rel	9	nsubj	_	_
9	hangs	hang	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	acl:relcl	_	_
10	from	from	ADP	IN	_	11	case	_	_
11	rails	rail	NOUN	NNS	Number=Plur	9	obl	_	_
12	on	on	ADP	IN	_	14	case	_	_
13	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
14	roof	roof	NOUN	NN	Number=Sing	9	obl	_	_
15	and	and	CCONJ	CC	_	16	cc	_	_
16	moves	move	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	conj	_	_
17	down	down	ADP	IN	_	19	case	_	_
18	the	the	DET	DT	Definite=Def|PronType=Art	19	det	_	_
19	building	building	NOUN	NN	Number=Sing	16	obl	_	_
20	,	,	PUNCT	,	_	24	punct	_	_
21	and	and	CCONJ	CC	_	24	cc	_	_
22	some	some	DET	DT	PronType=Ind	23	det	_	_
23	buildings	building	NOUN	NNS	Number=Plur	24	nsubj	_	_
24	use	use	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	conj	_	Agree=R5-strong|Haiku=16:conj
25	robot	robot	NOUN	NN	Number=Sing	26	compound	_	_
26	cleaners	cleaner	NOUN	NNS	Number=Plur	24	obj	_	_
27	.	.	PUNCT	.	_	4	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 | **clean** | present · passive |  | Skyscraper windows |  | a cradle |  |  | vn clear-10.3 «NP V NP PP.source»: subject=Theme from cradle=Source |
| 2 | **hang** | present | a cradle |  |  | rails |  | on the roof | vn assuming\_position-50 «NP V PP.location»: agent=Agent on roof=Location |
| 3 | **move down** | present | a cradle *not said here* | the building |  |  |  |  | vn roll-51.3.1 «NP V NP.theme»: agent=Agent building=Theme |
| 4 | **use** | present | some buildings | robot cleaners |  |  |  |  | vn eat-39.1 «NP V NP»: agent=Agent cleaner=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:technology:030-bridges-and-skyscrapers.lesson:19`.

**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. **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: [Bridges and skyscrapers, 18](https://md.mova.elamur.ai/free/en/corpora/school/technology/30-bridges-and-skyscrapers/18/)
- next →: [Bridges and skyscrapers, 20](https://md.mova.elamur.ai/free/en/corpora/school/technology/30-bridges-and-skyscrapers/20/)
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