---
title: Babies ride facing backwards because their necks are weak. — Car safety: brakes, seat belts and airbags · tree and pragmatics
description: Babies ride facing backwards because their necks are weak. Who acts: Babies, necks. A sentence of the lesson «Car safety: brakes, seat belts and airbags» of the technology course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Car safety: brakes, seat belts and airbags, sentence 13

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Babies ride facing backwards because their necks are weak.

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**Who acts:** Babies, necks · **What happens:** ride, face, be

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This is a sentence of the lesson «Car safety: brakes, seat belts and airbags» 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 (Babies, necks), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:technology:018-car-safety.lesson:13
# text = Babies ride facing backwards because their necks are weak.
# source = school lesson (ours)
# course = technology
# lesson = 018-car-safety.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): no change
1	Babies	baby	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	ride	ride	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	facing	face	VERB	VBG	VerbForm=Ger	2	xcomp	_	_
4	backwards	backwards	ADV	RB	_	3	advmod	_	_
5	because	because	SCONJ	IN	_	9	mark	_	_
6	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	7	nmod:poss	_	_
7	necks	neck	NOUN	NNS	Number=Plur	9	nsubj	_	_
8	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	9	cop	_	_
9	weak	weak	ADJ	JJ	Degree=Pos	2	advcl	_	_
10	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

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No stored speech act for this sentence.

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ride** | present | Babies |  |  |  |  |  | tree rules |
| 2 | **face** | gerund | Babies *not said here* |  |  |  |  | backwards *property* | vn fill-9.8-1 «NP V NP»: agent=Theme |
| 3 | **is** | present | Babies's necks |  |  |  |  | weak *property* | 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:technology:018-car-safety.lesson:13`.

**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): no change. **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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