Task: Question Generation
Input (English): Context : Neltje Blanchan De Graff Doubleday (October 23, 1865 -- February 21, 1918) was a United States scientific historian and nature writer who published several books on wildflowers and birds under the pen name Neltje Blanchan. 
Subject : Neltje Blanchan 
Relation : occupation
Output (English): What was Neltje Blanchan's occupation?