| Label | Dataset | Type | Subdivision | Identifier | |
|---|---|---|---|---|---|
| 1. | drilling |
AFS Ethnographic Thesaurus |
Topic SimpleType Authority |
afset005575 | |
| 2. | oil drilling |
AFS Ethnographic Thesaurus |
Topic SimpleType Authority |
afset012754 | |
| 3. | drilling rigs |
AFS Ethnographic Thesaurus |
Topic SimpleType Authority |
afset005576 | |
| 4. | gas drilling |
AFS Ethnographic Thesaurus |
Topic SimpleType Authority |
afset007687 | |
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