1381
Today , thousands of pro - life crusaders will participate in the March for Life in Washington D . C ., to honor the defenseless children and hope for an eventual Supreme Court reversal .
 Washington D . C: place; thousands: entity
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: demonstrate 
  Option: entity, place 
Text: {0} 
Answer:
 Washington D . C: place; thousands: entity