user: Question: Which title did Richard Kolner play?
Columns: ['Title', 'Date', 'Theatre', 'Role', 'Dance Partner', 'Director', 'Lyrics', 'Music']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['The Love Letter', 'Oct. 4 1921', 'Globe', 'Richard Kolner', 'Adele Astaire', 'Edward Royce', 'William LeBaron', 'Victor Jacobi']
SQL:

assistant: SELECT "Title" FROM "Table" WHERE "Role" = 'Richard Kolner';