Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_10840 ( "Year" real, "Title" text, "Role" text, "Leading Lady" text, "Director" text )

### Question ###
Who is the leading lady in a yank in the r.a.f.?

### Accurate SQL ###

SELECT "Leading Lady" FROM table_10840 WHERE "Title" = 'a yank in the r.a.f.'