SELECT T1.amenity_name FROM dorm_amenity AS T1 JOIN has_amenity AS T2 ON T1.amenid  =  T2.amenid GROUP BY T2.amenid ORDER BY count(*) DESC LIMIT 1
What is the most common amenity in the dorms?
SELECT T1.amenity_name FROM dorm_amenity AS T1 JOIN has_amenity AS T2 ON T1.amenid = T2.amenid GROUP BY T2.amenid ORDER BY count ( * ) DESC LIMIT 1
select t1 . amenity_name from dorm_amenity as t1 join has_amenity as t2 on t1 . amenid = t2 . amenid group by t2 . amenid order by count ( * ) desc limit value
What is the most common amenity in the dorms ?