Who was a prince first, Dmitry Donskoy or Alexander Vasilyevich?
return Dmitry Donskoy was  a prince ;return Alexander Vasilyevich was  a prince ;return when  was  #1 ;return when  was  #2 ;return which is the  lowest of #3 ,  #4
['select', 'select', 'project', 'project', 'comparison']