I want to know the answer to the following question:
William Cullen and Joseph Black shared what two occupations?
All the background I'm provided with is that "The focus of the Scottish Enlightenment ranged from intellectual and economic matters to the specifically scientific as in the work of William Cullen, physician and chemist; James Anderson, an agronomist; Joseph Black, physicist and chemist; and James Hutton, the first modern geologist.". Is that enough to answer the question?