---
title: To find how many years lie between a BC year and an AD year, add the… — BC and AD, dinosaurs and pyramids, and timelines · tree and pragmatics
description: To find how many years lie between a BC year and an AD year, add the two numbers and take away 1. Who acts: you, many years. A sentence of the lesson «BC and AD, dinosaurs and pyramids, and timelines» of the world course of Mova's primary school with its dependency tree and the pragmatics of every c
---

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# BC and AD, dinosaurs and pyramids, and timelines, sentence 14

<!-- .ven lang=en -->
To find how many years lie between a BC year and an AD year, add the two numbers and take away 1.

<!-- .vintro -->
**Who acts:** you, many years · **What happens:** find, lie, add, take away · **To what, where:** two numbers, 1 · **Speech:** someone speaks here

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This is a sentence of the lesson «BC and AD, dinosaurs and pyramids, and timelines» of the world 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 (you, many years), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:125-bc-ad-dinosaurs-pyramids-timelines.lesson:14
# text = To find how many years lie between a BC year and an AD year, add the two numbers and take away 1.
# source = school lesson (ours)
# course = world
# lesson = 125-bc-ad-dinosaurs-pyramids-timelines.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): R8-pos-agree ×1
1	To	to	PART	TO	_	2	mark	_	_
2	find	find	VERB	VB	VerbForm=Inf	16	advcl	_	_
3	how	how	ADV	WRB	PronType=Int	4	advmod	_	_
4	many	many	ADJ	JJ	Degree=Pos	5	amod	_	_
5	years	year	NOUN	NNS	Number=Plur	6	nsubj	_	_
6	lie	lie	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	ccomp	_	_
7	between	between	ADP	IN	_	10	case	_	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
9	BC	BC	NOUN	NN	Number=Sing	10	compound	_	Agree=R8-pos-agree|Haiku=10:compound|HaikuPos=PROPN:NNP:Number=Sing
10	year	year	NOUN	NN	Number=Sing	6	obl	_	_
11	and	and	CCONJ	CC	_	14	cc	_	_
12	an	a	DET	DT	Definite=Ind|PronType=Art	14	det	_	_
13	AD	ad	NOUN	NN	Number=Sing	14	compound	_	_
14	year	year	NOUN	NN	Number=Sing	10	conj	_	_
15	,	,	PUNCT	,	_	16	punct	_	_
16	add	add	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
17	the	the	DET	DT	Definite=Def|PronType=Art	19	det	_	_
18	two	two	NUM	CD	NumForm=Word|NumType=Card	19	nummod	_	_
19	numbers	number	NOUN	NNS	Number=Plur	16	obj	_	_
20	and	and	CCONJ	CC	_	21	cc	_	_
21	take	take	VERB	VB	Mood=Imp|VerbForm=Fin	16	conj	_	_
22	away	away	ADP	RP	_	21	compound:prt	_	_
23	1	1	NUM	CD	NumForm=Digit|NumType=Card	21	obj	_	_
24	.	.	PUNCT	.	_	16	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
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 | **find** | to-infinitive | you *not said here* |  |  |  |  |  | vn declare-29.4-1-1 «NP V what S\_INF»: agent=Agent clause=Theme |
| 2 | **lie** | present | many years |  |  |  | year |  | vn assuming\_position-50 «NP V»: agent=Agent |
| 3 | **add** *speech: assert* | imperative | you *not said here* | the two numbers |  |  |  |  | vn mix-22.1-2 «NP V NP»: agent=Agent number=Patient |
| 4 | **take away** | infinitive | you *not said here* | 1 |  |  |  |  | vn remove-10.1 «NP V NP»: agent=Agent 1=Theme |

<!-- .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:world:125-bc-ad-dinosaurs-pyramids-timelines.lesson:14`.

**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): 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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