---
title: The four tail spikes of Stegosaurus are called a thagomizer, a name… — Horns, frills, plates and clubs: Triceratops, St… · tree and pragmatics
description: The four tail spikes of Stegosaurus are called a thagomizer, a name scientists borrowed from a funny cartoon; an Allosaurus bone has a hole that fits a spike. Who acts: scientists, Allosaurus bone, hole, Stegosaurus. A sentence of the lesson «Horns, frills, plates and clubs: Triceratops, Stegosaurus
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/267-horns-frills-plates-and-clubs/9/)

<!-- 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/) / [Biology](https://md.mova.elamur.ai/free/en/corpora/school/biology/) / [Horns, frills, plates and clubs: Trice…](https://md.mova.elamur.ai/free/en/corpora/school/biology/267-horns-frills-plates-and-clubs/) / 9

# Horns, frills, plates and clubs: Triceratops, Stegosaurus, Ankylosaurus and the duck-bills, sentence 9

<!-- .ven lang=en -->
The four tail spikes of Stegosaurus are called a thagomizer, a name scientists borrowed from a funny cartoon; an Allosaurus bone has a hole that fits a spike.

<!-- .vintro -->
**Who acts:** scientists, Allosaurus bone, hole, Stegosaurus · **What happens:** call, borrow, have, fit, spike · **To what, where:** four tail spikes, name, funny cartoon, hole, spike · **Speech:** someone speaks here

<!-- .vabout -->
This is a sentence of the lesson «Horns, frills, plates and clubs: Triceratops, Stegosaurus, Ankylosaurus and the duck-bills» of the biology 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 (scientists, Allosaurus bone, hole, Stegosaurus), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:267-horns-frills-plates-and-clubs.lesson:9
# text = The four tail spikes of Stegosaurus are called a thagomizer, a name scientists borrowed from a funny cartoon; an Allosaurus bone has a hole that fits a spike.
# source = school lesson (ours)
# course = biology
# lesson = 267-horns-frills-plates-and-clubs.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 ×2, R8-pos-agree ×1
1	The	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
2	four	four	NUM	CD	NumForm=Word|NumType=Card	4	nummod	_	_
3	tail	tail	NOUN	NN	Number=Sing	4	compound	_	_
4	spikes	spike	NOUN	NNS	Number=Plur	8	nsubj:pass	_	_
5	of	of	ADP	IN	_	6	case	_	_
6	Stegosaurus	Stegosaurus	PROPN	NNP	Number=Sing	4	nmod	_	_
7	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	8	aux:pass	_	_
8	called	call	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
10	thagomizer	thagomizer	NOUN	NN	Number=Sing	8	xcomp	_	Agree=R7-rel-agree|Haiku=8:obj
11	,	,	PUNCT	,	_	10	punct	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
13	name	name	NOUN	NN	Number=Sing	10	appos	_	_
14	scientists	scientist	NOUN	NNS	Number=Plur	15	nsubj	_	_
15	borrowed	borrow	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	13	acl	_	Agree=R8-pos-agree|Haiku=13:acl|HaikuPos=VERB:VBN:Tense=Past|VerbForm=Part
16	from	from	ADP	IN	_	19	case	_	_
17	a	a	DET	DT	Definite=Ind|PronType=Art	19	det	_	_
18	funny	funny	ADJ	JJ	Degree=Pos	19	amod	_	_
19	cartoon	cartoon	NOUN	NN	Number=Sing	15	obl	_	_
20	;	;	PUNCT	:	_	24	punct	_	_
21	an	a	DET	DT	Definite=Ind|PronType=Art	23	det	_	_
22	Allosaurus	Allosaurus	PROPN	NNP	Number=Sing	23	compound	_	_
23	bone	bone	NOUN	NN	Number=Sing	24	nsubj	_	_
24	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	parataxis	_	Agree=R7-rel-agree|Haiku=8:conj
25	a	a	DET	DT	Definite=Ind|PronType=Art	26	det	_	_
26	hole	hole	NOUN	NN	Number=Sing	24	obj	_	_
27	that	that	PRON	WDT	PronType=Rel	28	nsubj	_	_
28	fits	fit	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	26	acl:relcl	_	_
29	a	a	DET	DT	Definite=Ind|PronType=Art	30	det	_	_
30	spike	spike	NOUN	NN	Number=Sing	28	obj	_	_
31	.	.	PUNCT	.	_	8	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 | **call** *speech: assert* | present · passive |  | the four tail spikes of Stegosaurus |  |  |  |  | vn initiate\_communication-37.4.2-1 «NP V NP.recipient»: subject=Recipient |
| 2 | **borrow** | past | scientists | a name *not said here* |  | a funny cartoon |  |  | vn obtain-13.5.2 «NP V NP PP.source»: agent=Agent name=Theme from cartoon=Source |
| 3 | **have** | present | a Allosaurus bone | a hole |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent hole=Patient |
| 4 | **fit** | present | a hole | a spike |  |  |  |  | vn adjust-26.9 «NP V NP»: agent=Agent spike=Patient |
| 5 | **spike** |  | Stegosaurus |  |  |  |  |  | nom spike «event intransitive»: of=agent |

<!-- .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:biology:267-horns-frills-plates-and-clubs.lesson:9`.

**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 ×2, 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: [Horns, frills, plates and clubs: Trice…, 8](https://md.mova.elamur.ai/free/en/corpora/school/biology/267-horns-frills-plates-and-clubs/8/)
- next →: [Horns, frills, plates and clubs: Trice…, 10](https://md.mova.elamur.ai/free/en/corpora/school/biology/267-horns-frills-plates-and-clubs/10/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/267-horns-frills-plates-and-clubs/)

