user: Question: Who was the leading lady for Uni studio and Frank Strayer?
Columns: ['Title', 'Studio', 'Role', 'Leading lady', 'Director']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['The Oregon Trail', 'Rep', 'Capt. John Delmont', 'Ann Rutherford', 'Scott Pembroke']
SQL:

assistant: SELECT "Leading lady" FROM "Table" WHERE "Studio" = 'Uni' AND "Director" = 'Frank Strayer';