query: SELECT fname ,  sex FROM Student WHERE StuID IN (SELECT StuID FROM Has_allergy WHERE Allergy  =  "Milk" EXCEPT SELECT StuID FROM Has_allergy WHERE Allergy  =  "Cat")
question: What-all of the students who have allergy to milk but can put up with cats are that name first and gender?
query_toks: SELECT fname , sex FROM Student WHERE StuID IN ( SELECT StuID FROM Has_allergy WHERE Allergy = `` Milk '' EXCEPT SELECT StuID FROM Has_allergy WHERE Allergy = `` Cat '' )
query_toks_no_value: select fname , sex from student where stuid in ( select stuid from has_allergy where allergy = value except select stuid from has_allergy where allergy = value )
question_toks: What-all of the students who have allergy to milk but can put up with cats are that name first and gender?