query: SELECT first_name FROM Professionals UNION SELECT first_name FROM Owners EXCEPT SELECT name FROM Dogs
question: Are Finding the first names that are a-used for professionals or owners but ain't a-used as dog no names.
query_toks: SELECT first_name FROM Professionals UNION SELECT first_name FROM Owners EXCEPT SELECT name FROM Dogs
query_toks_no_value: select first_name from professionals union select first_name from owners except select name from dogs
question_toks: Are Finding the first names that are a-used for professionals or owners but ain't a-used as dog no names.