Find the players' first name and last name who won award both in 1960 and in 1961.
select t1.name_first, t1.name_last from player as t1 join player_award as t2 on t1.player_id = t2.player_id where t2.year = 1960 intersect select t1.name_first, t1.name_last from player as t1 join player_award as t2 where t2.year = 1961