Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.
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Question: Context: Athabasca Valles is an outflow channel on Mars, cut into its surface by catastrophic flooding. 
 Question: The astronomical body that Athabasca Valles was located on was what?

Answer: mars


Question: Context: Adolphe Lechaptois (8 June 1852 -- 30 November 1917) was a priest of the White Fathers missionary society who was Vicar Apostolic of Tangyanika from 1891 until his death in 1917, in what is now Tanzania. 
 Question: What group was Adolphe Lechaptois a member of?

Answer: white fathers


Question: Context: The Premier Mine is an underground diamond mine owned by Petra Diamonds. 
 Question: What type of product does Premier Mine produce?

Answer:
diamond