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_61104 ( "Year" real, "Award" text, "Category" text, "Nominated Work" text, "Result" text )

### Question ###
Which nominated work is in the category of best performance by a leading actress in a play earlier than 2007?

### Accurate SQL ###

SELECT "Nominated Work" FROM table_61104 WHERE "Category" = 'best performance by a leading actress in a play' AND "Year" < '2007'