Abstract: The present invention identifies a new way of constructing chatter robots based on client-server communication via Internet. An innovative artificial intelligence is provided based on the recognition of relationship between different sentences in human conversation. Powered by the new kind of chatter robots, the present invention also includes a new kind of computer interface to allow users to obtain information and complete computer related tasks by communicate with the computer via common natural language. The present invention also includes ways of incorporate the new artificial intelligence and computer interface with online computer games, both to enhance the computer games and to further retain games players.