Color classification
                        
                                                            Single
                                                            Double bit
                                                            1+2+3 + coffee table
                                                            1+2+3 + coffee table + TV cabinet
                                                            Single + four + imperial concubine + tea table + TV cabinet
                                                            1+2+3
                                                            Three-person position
                                                            Four people
                                                            Three people + Imperial Concubine
                                                            Three people + imperial concubine + tea table
                                                            Three seats + imperial concubine + coffee table + TV cabinet
                                                            Four persons + Imperial Concubine
                                                            Four + imperial concubine + tea table
                                                            Four + imperial concubine + tea table + TV cabinet
                                                            Single + Four + Imperial Concubine
                                                            Single + four + imperial concubine + tea table