add_person Alice add_person Bethany add_person Chris add_person Dan add_person Erica add_person Fred add_person Greg add_friendship Alice Bethany add_friendship Alice Chris add_friendship Bethany Erica add_friendship Chris Alice add_friendship Chris Fred add_friendship Dan Fred add_friendship Erica Bethany add_friendship Erica Chris add_friendship Erica Greg add_friendship Fred Greg add_friendship Greg Erica print print_invite_list Dan 0 print_invite_list Dan 1 print_invite_list Dan 2 print_invite_list Dan 3 print_invite_list Dan 4 print_invite_list Dan 5