Question: List player's first name and last name who received salary from team Washington Nationals in both 2005 and 2007?
SQL: SELECT T2.name_first ,  T2.name_last FROM salary AS T1 JOIN player AS T2 ON T1.player_id  =  T2.player_id JOIN team AS T3 ON T3.team_id_br  =  T1.team_id WHERE T1.year  =  2005 AND T3.name  =  'Washington Nationals' INTERSECT SELECT T2.name_first , T2.name_last FROM salary AS T1 JOIN player AS T2 ON T1.player_id  =  T2.player_id JOIN team AS T3 ON T3.team_id_br  =  T1.team_id WHERE T1.year  =  2007 AND T3.name  =  'Washington Nationals'