50
Swapping smiles , handshakes and hugs at a joint press appearance after talks linked to Saint Petersburg ' s 300th anniversary celebrations , Bush and Putin set out to recreate the buddy atmosphere of their previous encounters .
 Bush: entity; Putin: 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: meet 
  Option: entity, place 
Text: {0} 
Answer:
 Bush: entity; Putin: entity