query: SELECT T1.course_name FROM courses AS T1 JOIN student_course_registrations AS T2 ON T1.course_id = T2.course_Id GROUP BY T1.course_id ORDER BY count(*) DESC LIMIT 1
question: which course has most number of registered students?
query_toks: SELECT T1.course_name FROM courses AS T1 JOIN student_course_registrations AS T2 ON T1.course_id = T2.course_Id GROUP BY T1.course_id ORDER BY count ( * ) DESC LIMIT 1
query_toks_no_value: select t1 . course_name from courses as t1 join student_course_registrations as t2 on t1 . course_id = t2 . course_id group by t1 . course_id order by count ( * ) desc limit value
question_toks: which course has most number of registered students?