Find the name and id of the good with the highest average rank.
SELECT T1.title ,  T1.i_id FROM item AS T1 JOIN review AS T2 ON T1.i_id  =  T2.i_id GROUP BY T2.i_id ORDER BY avg(T2.rank) DESC LIMIT 1
SELECT T1.title ,  T1.i_id FROM item AS T1 JOIN review AS T2 ON T1.i_id  =  T2.i_id GROUP BY T2.i_id ORDER BY avg(T2.rank) DESC LIMIT 1
[{'title': 'cup', 'i_id': 7}]