user: Question: What is the role in an Original Play, Comedy in 1938?
Columns: ['Year', 'Title', 'Format/genre', 'Role', 'Staged by']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1938.0, 'What A Life!', 'Original Play, Comedy', 'Walk on, Water carrier', 'George Abbott Category:Articles with hCards']
SQL:

assistant: SELECT "Role" FROM "Table" WHERE "Format/genre" = 'Original Play, Comedy' AND "Year" = 1938.0;