What are the names of any scientists who worked on projects named 'Matter of Time' and 'A Puzzling Pattern'?
return scientists ;return projects #1 worked on  ;return #1 where #2 are  named 'Matter of  Time ;return #1 where #2 are  named 'A Puzzling Pattern ;return #1 of  both #3 and  #4 ;return names of  #5
['select', 'project', 'comparative', 'comparative', 'intersection', 'project']