Item:Q8197: Difference between revisions
Created a new Item: extraction, term in mining; extraction of raw materials, like oil, coal, ore etc. |
Created claim: subclass of (P1): production (Q1135) |
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| Property / subclass of | |||
| Property / subclass of: production / rank | |||
Normal rank | |||
| Property / subclass of: production / qualifier | |||