For each tourist attraction, return its name and the date when the tourists named Vincent or Vivian visited there.
return tourist attractions ;return names of #1 ;return tourists that visited #1 ;return name of #3 ;return date for each #1 when  #4 equal to Vincent visited there  ;return date for each #1 when  #4 equal to Vivian visited there  ;return #5 ,  #6 ;return #2 ,  #7
['select', 'project', 'project', 'project', 'group', 'group', 'union', 'union']