query: SELECT T1.date_of_enrolment ,  T1.date_of_completion FROM Student_Course_Enrolment AS T1 JOIN Students AS T2 ON T1.student_id  =  T2.student_id WHERE T2.personal_name  =  "Karson"
question: Are Listing date of enrollment and the completion of student with personal name "Karson".
query_toks: SELECT T1.date_of_enrolment , T1.date_of_completion FROM Student_Course_Enrolment AS T1 JOIN Students AS T2 ON T1.student_id = T2.student_id WHERE T2.personal_name = `` Karson ''
query_toks_no_value: select t1 . date_of_enrolment , t1 . date_of_completion from student_course_enrolment as t1 join students as t2 on t1 . student_id = t2 . student_id where t2 . personal_name = value
question_toks: Are Listing date of enrollment and the completion of student with personal name "Karson".