query: SELECT T3.staff_first_name ,  T3.staff_last_name FROM problems AS T1 JOIN product AS T2 JOIN staff AS T3 ON T1.product_id = T2.product_id AND T1.reported_by_staff_id = T3.staff_id WHERE T2.product_name = "rem" EXCEPT SELECT T3.staff_first_name ,  T3.staff_last_name FROM problems AS T1 JOIN product AS T2 JOIN staff AS T3 ON T1.product_id = T2.product_id AND T1.reported_by_staff_id = T3.staff_id WHERE T2.product_name = "aut"
question: Find that first and last name staff member who had reported problem that product "rem" but not "aut"?
query_toks: SELECT T3.staff_first_name , T3.staff_last_name FROM problems AS T1 JOIN product AS T2 JOIN staff AS T3 ON T1.product_id = T2.product_id AND T1.reported_by_staff_id = T3.staff_id WHERE T2.product_name = `` rem '' EXCEPT SELECT T3.staff_first_name , T3.staff_last_name FROM problems AS T1 JOIN product AS T2 JOIN staff AS T3 ON T1.product_id = T2.product_id AND T1.reported_by_staff_id = T3.staff_id WHERE T2.product_name = `` aut ''
query_toks_no_value: select t3 . staff_first_name , t3 . staff_last_name from problems as t1 join product as t2 join staff as t3 on t1 . product_id = t2 . product_id and t1 . reported_by_staff_id = t3 . staff_id where t2 . product_name = value except select t3 . staff_first_name , t3 . staff_last_name from problems as t1 join product as t2 join staff as t3 on t1 . product_id = t2 . product_id and t1 . reported_by_staff_id = t3 . staff_id where t2 . product_name = value
question_toks: Find that first and last name staff member who had reported problem that product "rem" but not "aut"?