Task: Question Generation
Input (English): #1 return the  Ryukyu Kingdom being conquered 
#2 return the  Tokara Islands being returned to Japan 
#3 return when  was  #1 
#4 return when  was  #2 
#5 return which is lowest of #3 ,  #4
Output (English): What event happened first, the Ryukyu Kingdom being conquered, or The Tokara Islands being returned to Japan?