What is the first and last name of all students who play Football or Lacrosse?
return students ;return #1 who play Football ;return #1 who play Lacrosse ;return #2 ,  #3 ;return the  first names of #4 ;return the  last names of #4 ;return #5 ,  #6
['select', 'filter', 'filter', 'union', 'project', 'project', 'union']