query: SELECT DISTINCT T1.LName FROM STUDENT AS T1 JOIN VOTING_RECORD AS T2 ON T1.StuID  =  T2.CLASS_President_VOTE
question: Are Finding the distinct last names of students which what have clases president votes.
query_toks: SELECT DISTINCT T1.LName FROM STUDENT AS T1 JOIN VOTING_RECORD AS T2 ON T1.StuID = T2.CLASS_President_VOTE
query_toks_no_value: select distinct t1 . lname from student as t1 join voting_record as t2 on t1 . stuid = t2 . class_president_vote
question_toks: Are Finding the distinct last names of students which what have clases president votes.