user: Question: Which Doctor is featured in City of Death?
Columns: ['Story #', 'Title', 'Doctor', 'Narrator', 'Format', 'release date']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['016', 'The Daleks', '1 First Doctor', 'Graham, David David Graham', '7"', '1966-04-01 April 1966']
SQL:

assistant: SELECT "Doctor" FROM "Table" WHERE "Title" = 'City of Death';