user: Question: Which Date has an Opposing Pitcher of Jack Morris, and an Inning of 4th?
Columns: ['Home Run', 'Game', 'Date', 'Inning', 'Location', 'Opposing Pitcher', 'Team']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 4.0, 'October 4, 1987', '7th', 'Oakland', 'Donnie Moore', 'Angels']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Opposing Pitcher" = 'Jack Morris' AND "Inning" = '4th';