What are the first year and last year of the parties whose theme is "Spring" or "Teqnology"?
return parties ;return themes of  #1 ;return #1 where #2 is  Spring ;return #1 where #2 is  Teqnology ;return #3 or  #4 ;return first year  of  #5 ;return last year  of  #5 ;return #6 ,  #7
['select', 'project', 'comparative', 'comparative', 'union', 'project', 'project', 'union']