---
title: In 1938, vast reserves of oil were discovered in the Al-Ahsa region… — Saudi Arabia · tree and pragmatics
description: In 1938, vast reserves of oil were discovered in the Al-Ahsa region along the coast of the Persian Gulf, and full-scale development of the oil fields began in 1941 under the US-controlled Aramco (Arabian American Oil Company). Who acts: scale development. A sentence of Wikipedia's «Saudi Arabia» wit
---

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# Saudi Arabia, sentence 122

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From Wikipedia, [«Saudi Arabia»](https://en.wikipedia.org/wiki/Saudi_Arabia), revision of the 2026-09-01 dump, [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/). The trees and pragmatics of these pages, Mova's parse of that text, are CC BY-SA 4.0 too.

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In 1938, vast reserves of oil were discovered in the Al-Ahsa region along the coast of the Persian Gulf, and full-scale development of the oil fields began in 1941 under the US-controlled Aramco (Arabian American Oil Company).

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**Who acts:** scale development · **What happens:** discover, begin, control, develop · **To what, where:** vast reserves, 1938, 1941, oil fields

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This is a sentence of the English Wikipedia article «Saudi Arabia». The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (scale development), what happens, when and where, as Mova's frames read it from the tree.

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**Mova's own parse.** This tree may be wrong. The article's note marks are left out of the parse.

## The tree {#tree}

```conllu
# sent_id = wikipedia:Saudi_Arabia:122
# text = In 1938, vast reserves of oil were discovered in the Al-Ahsa region along the coast of the Persian Gulf, and full-scale development of the oil fields began in 1941 under the US-controlled Aramco (Arabian American Oil Company).
1	In	in	ADP	IN	_	2	case	_	_
2	1938	1938	NUM	CD	NumForm=Digit|NumType=Card	9	obl	_	SpaceAfter=No
3	,	,	PUNCT	,	_	2	punct	_	_
4	vast	vast	ADJ	JJ	Degree=Pos	5	amod	_	_
5	reserves	reserve	NOUN	NNS	Number=Plur	9	nsubj:pass	_	_
6	of	of	ADP	IN	_	7	case	_	_
7	oil	oil	NOUN	NN	Number=Sing	5	nmod	_	_
8	were	be	AUX	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	9	aux:pass	_	_
9	discovered	discover	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
10	in	in	ADP	IN	_	15	case	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	15	det	_	_
12	Al	Al	PROPN	NNP	Number=Sing	14	compound	_	SpaceAfter=No
13	-	-	PUNCT	HYPH	_	12	punct	_	SpaceAfter=No
14	Ahsa	Ahsa	PROPN	NNP	Number=Sing	15	compound	_	_
15	region	region	NOUN	NN	Number=Sing	9	obl	_	_
16	along	along	ADP	IN	_	18	case	_	_
17	the	the	DET	DT	Definite=Def|PronType=Art	18	det	_	_
18	coast	coast	NOUN	NN	Number=Sing	9	obl	_	_
19	of	of	ADP	IN	_	22	case	_	_
20	the	the	DET	DT	Definite=Def|PronType=Art	22	det	_	_
21	Persian	Persian	PROPN	NNP	Number=Sing	22	compound	_	_
22	Gulf	Gulf	PROPN	NNP	Number=Sing	18	nmod	_	SpaceAfter=No
23	,	,	PUNCT	,	_	28	punct	_	_
24	and	and	CCONJ	CC	_	28	cc	_	_
25	full	full	ADJ	JJ	Degree=Pos	27	amod	_	SpaceAfter=No
26	-	-	PUNCT	HYPH	_	25	punct	_	SpaceAfter=No
27	scale	scale	NOUN	NN	Number=Sing	28	compound	_	_
28	development	development	NOUN	NN	Number=Sing	33	nsubj	_	_
29	of	of	ADP	IN	_	32	case	_	_
30	the	the	DET	DT	Definite=Def|PronType=Art	32	det	_	_
31	oil	oil	NOUN	NN	Number=Sing	32	compound	_	_
32	fields	field	NOUN	NNS	Number=Plur	28	nmod	_	_
33	began	begin	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	9	parataxis	_	_
34	in	in	ADP	IN	_	35	case	_	_
35	1941	1941	NUM	CD	NumForm=Digit|NumType=Card	33	obl	_	_
36	under	under	ADP	IN	_	41	case	_	_
37	the	the	DET	DT	Definite=Def|PronType=Art	41	det	_	_
38	US	US	PROPN	NNP	Number=Sing	40	compound	_	SpaceAfter=No
39	-	-	PUNCT	HYPH	_	38	punct	_	SpaceAfter=No
40	controlled	control	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	41	amod	_	_
41	Aramco	Aramco	PROPN	NNP	Number=Sing	33	obl	_	_
42	(	(	PUNCT	-LRB-	_	46	punct	_	SpaceAfter=No
43	Arabian	Arabian	ADJ	JJ	Degree=Pos	46	amod	_	_
44	American	American	ADJ	JJ	Degree=Pos	46	amod	_	_
45	Oil	Oil	PROPN	NNP	Number=Sing	46	compound	_	_
46	Company	Company	PROPN	NNP	Number=Sing	41	appos	_	SpaceAfter=No
47	)	)	PUNCT	-RRB-	_	46	punct	_	SpaceAfter=No
48	.	.	PUNCT	.	_	9	punct	_	_
```

## Pragmatics {#pragmatics}

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **discover** | past · passive |  | vast reserves of oil |  | 1938 |  | in the Ahsa region; along the coast of the Persian Gulf | vn discover-84-1 «NP V NP»: subject=Topic |
| 2 | **begin** | past | scale development of the oil fields |  |  | 1941 |  | under the controlled Aramco | vn begin-55.1-1-1 «NP.eventuality V»: agent=Eventuality |
| 3 | **control** | participle |  |  |  |  |  | US *compound* | vn enforce-63 «NP V that S»: agent=Agent |
| 4 | **develop** |  |  | the oil fields |  |  |  |  | nom development «act transitive»: of=patient |

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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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**Text:** the English Wikipedia, «Saudi Arabia», revision of the 2026-09-01 dump, CC BY-SA 4.0. **Tree:** Mova's own parse, CC BY-SA 4.0 as the text is. **Frames:** Mova's frames reader (`prag`), the article read in order, CC BY-SA 4.0.

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