Occurrence of Attributes in Original Text
The text related to the cultural heritage 'The Slate Landscape of Northwest Wales' has mentioned 'Coal' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| it accounted for almost half the total revenues from trade, industry and the professions, and in Wales as a whole, its output value compared with that of coal. | WIKI |
| A government enquiry in 1893 found that the death rate for underground workers in the slate mines was 3.23 per thousand, higher than the rate for coal miners. | WIKI |