35 Commercial negotiation services namely negotiation of commercial transactions for third parties relating to real estate and luxury services namely private jets and yachts charter, art advisory, interior decoration, and wine brokerage services ; business management of real estate programs; Commercial administration of real estate being real estate management; market study and research with respect to real estate; Commercial intermediation services namely, business intermediary services relating to the matching of various professionals with clients relating to real estate and luxury services namely private jets and yachts charter, art advisory, interior decoration, and wine brokerage services ; promotion of real property; marketing relating to real estate; business administrative services relating to the commercial business of franchises; Franchise business management, namely, assistance regarding commercial franchise management; Business administration assistance, namely commercial assistance services for the setting up of franchises; business consultation services in the field of franchise operation; advertising; advertising services in the field of real estate and lifestyle; auctioning of real property; on-line auctioning of real property; auctioneering services; auctioning of works of art and collectibles, including online; auctioning of virtual objects in online environments and virtual environments; auctioning of digital works of art and virtual collectibles; conducting of interactive virtual auctions; Online retail store services for virtual objects for use in online environments and virtual environments; providing an online marketplace for buyers and sellers of encrypted collectibles; providing an online marketplace for buyers and sellers of non-fungible blockchain-based assets; operating online marketplaces featuring encrypted collectibles and non-fungible blockchain-based assets; promotion of airplanes and helicopters, and vehicles for locomotion by land and sea for the benefit of others; Purchasing agent services being services provided in the context of the retailing of airplanes and helicopters, and vehicles for locomotion by land and sea, namely, the purchase and resale of airplanes and helicopters, and vehicles for locomotion by land and sea for the benefit of third parties; online retail store services for the purchase and sale of airplanes and helicopters, and vehicles for locomotion by land and sea for the benefit of others; Commercial management of a fleet of apparatus for locomotion by land, sea and air for the benefit of third parties, namely, fleet management via tracking of fleet vehicles for commercial purposes; retail store services for airplanes and helicopters, and vehicles for locomotion by land and sea; business advice, information or inquiry with respect to air transport; airline promotion services; Catalog ordering services featuring presentation of duty-free textiles, clothing, footwear, cosmetics, perfumery, clocks and jewelry, foodstuffs and beverages, alcoholic and non-alcoholic on any means of communication for retail during air transport; Retail store services for tax-free goods in store in boarding areas or on-board airplanes for duty-free textiles, clothing, footwear, cosmetics, perfumery, clocks and jewelry, foodstuffs and beverages, alcoholic and non-alcoholic; retail store services relating to foodstuffs; retail store services for prepared meals; retail store services for beverages; arranging subscriptions to air transport services for others; Outsourcing services being commercial assistance in the field of air transport; commercial management and advice for users of blockchain technology, cryptocurrencies and involved in the development and operation of virtual worlds; Commercial interfacing of companies, namely, business intermediary services relating to the matching of various professionals with clients in the field of construction works; services for the dissemination of vacation accommodation advertisements via a global computer network