question: How many days after the Nationalists demand of the Greeks did Kemal agreed to respect that the British were prepared to defend the neutral zone of Constantinople and the Straits?
#1 return the  Nationalists demand of the     Greeks 
#2 return Kemal agreed to respect that the  British were prepared to  defend the     neutral zone of Constantinople and  the   Straits 
#3 return when  was  #1 
#4 return when  was  #2 
#5 return difference of #3 and  #4 in  days