What are the names of tourist attractions that can be reached by walk or is at address 660 Shea Crescent?
return tourist attractions ;return #1 that can be reached by walk ;return address of #1 ;return #1 where #3 is 660 Shea Crescent ;return #2 ,  #4 ;return names of #5
['select', 'filter', 'project', 'comparative', 'union', 'project']