List the name of the stadium where both the player 'Walter Samuel' and the player 'Thiago Motta' got injured.
return stadiums ;return players injured in #1 ;return #1 where  #2 is 'Walter Samuel ;return #1 where  #2 is 'Thiago Motta ;return #1 of  both #3 and #4 ;return name of  #5
['select', 'project', 'comparative', 'comparative', 'intersection', 'project']