Database: dog_kennels
Question: Return the owner id, first name and last name of the owner who has the most dogs.
SQL: select t1.owner_id ,  t2.first_name ,  t2.last_name from dogs as t1 join owners as t2 on t1.owner_id  =  t2.owner_id group by t1.owner_id order by count(*) desc limit 1