Task: Question Generation
Input (English): #1 return Baldwin  de Burg became Count of Edessa 
#2 return Baldwin  de Burg became King Baldwin II of Jerusalem 
#3 return year of #1 
#4 return year of #2 
#5 return the  difference of #4 and  #3
Output (English): How many years after Baldwin de Burg became Count of Edessa did he become King Baldwin II of Jerusalem?