Color classification
                        
                                                            [Standard Edition] Function Single + Single + Single
                                                            [Standard version] double armrest function single position
                                                            [Upgrade Version] Function Single Bit + Single Bit + Single Bit + Single Bit
                                                            [Upgrade Version] Function Single Bit + Single Bit + Single Bit + Function Single Bit
                                                            [Upgrade Version] Function Single + Single + Single
                                                            [Upgrade Version] Function Single Bit + Single Bit + Function Single Bit
                                                            [Standard Edition] Function Single Bit + Single Bit
                                                            [Standard Edition] Function Single Bit + Function Single Bit
                                                            [Standard Edition] Function Single Bit + Single Bit + Function Single Bit
                                                            [Standard Edition] Function Single + Single + Single + Single
                                                            [Standard Edition] Function Single + Single + Single + Function Single
                                                            [Standard Edition] Function Single + Single + Single + Single + Single + Single
                                                            [Upgrade Version] Function Single + Single + Single + Single + Single + Single
                                                            [Upgrade Version] Function Single Bit + Single Bit + Single Bit + Single Bit + Function Single Bit
                                                            [Standard Edition] Function Single Bit + Single Bit + Single Bit + Single Bit + Function Single Bit
                                                            [Upgraded Version] Single position with double armrest function
                                                            [Upgrade Version] Function Single + Single
                                                            [Upgrade Version] Function Single Bit + Function Single Bit
                                                     
                     
                                    
                        Applicable number of persons