A method and corresponding apparatus are provided implementing a stage one of run time processing using Deterministic Finite Automata and implementing a stage two of run time processing using Non-Deterministic Finite Automata to find the existence of a pattern in a payload, such as the payload portion of an Internet Protocol datagram, or an input stream. The system for treating organic wastewater includes a multistage treatment tank having at least two stages in series. The contact surface of the flange is spaced apart from the axial end of the roller in the axial direction. A display mechanism may be in communication with the controller and may be adapted to display the prize object to the player. The cooling portion has an electronic cooling element for cooling the cooling portion by the Peltier effect, to make moisture condensed on the condensation portion and a connection portion in the vicinity of thereof flow downward into the humidification water reservoir and repeatedly usable as humidification water.