query: SELECT T3.Name FROM course_arrange AS T1 JOIN course AS T2 ON T1.Course_ID  =  T2.Course_ID JOIN teacher AS T3 ON T1.Teacher_ID  =  T3.Teacher_ID WHERE T2.Course  =  "Math"
question: What-all are the names of the people at teach math courses?
query_toks: SELECT T3.Name FROM course_arrange AS T1 JOIN course AS T2 ON T1.Course_ID = T2.Course_ID JOIN teacher AS T3 ON T1.Teacher_ID = T3.Teacher_ID WHERE T2.Course = `` Math ''
query_toks_no_value: select t3 . name from course_arrange as t1 join course as t2 on t1 . course_id = t2 . course_id join teacher as t3 on t1 . teacher_id = t3 . teacher_id where t2 . course = value
question_toks: What-all are the names of the people at teach math courses?