if __name__ == '__main__':
rcb: RailChatBot = RailChatBot()
# Learning phase
for item in ["one", "2", "3", "4", "5", "6"]:
rcb.learn(item)
temp: UniqueItemsPriorityQue = UniqueItemsPriorityQue()
# Respond and insert initial monolog
n = rcb.respondMonolog("one")...