Which came first in the Yucatan Peninsula, commercial jets to Merida or to Cancun?
return Yucatan Peninsula ;return commercial jets to Merida in  #1 ;return commercial jets to Cancun in  #1 ;return when  was  #2 ;return when  was  #4 ;return which is first of #4 ,  #5
['select', 'project', 'project', 'project', 'project', 'comparison']