List players' first name and last name who received salary from team Washington Nationals in both 2005 and 2007.
return players ;return #1 who  received salary from team Washington in 2005 ;return #1 who  received salary from team Washington in 2007 ;return first name  of  both #2 and #3 ;return last name  of  both #2 and #3 ;return #4 ,  #5
['select', 'filter', 'filter', 'intersection', 'intersection', 'union']