RULES AND REGULATIONS OF TUE RESIDENTIAL SECTION The entrances, passages, public halls, elevators, vestibules, conidors and stairways of the Residential Section shall not be obstructed or used for any other purpose than ingress to and egress from the Residential Units. No article (including, but not limited to, garbage cans, bottles or mats) shall be placed in any of the pass..ttes, public halls, vestibules, corridors, stairways or fire tower landings of the Residential Section, nor shall any fire cdt thereof be obstructed in any manner. Nothing shall be hung or shaken from any doors, windows or roofs or placed upon the window sills of the Residential Section. Neither occupants nor their guests shall play in the entrances, passages, public halls, elevators, vestibules, corridors, stairways or fire towers of the Residential Section. No public hall or public elevator vestibule of the Residential Section shall be decorated or furnished by any Residential Unit Owner in any manner. Each Residential Unit Owner shall keep such Unit Owner's Unit and any Limited Common Elements appurtenant thereto (including the surface of any Terrace appurtenant to a Residential Unit) in a good state of preservation and cleanliness, and shall not sweep or throw or permit to be swept or thrown therefrom, or from the doors or windows thereof, any dirt or other substance. Any determination as to what constitutes a good state of preservation and cleanliness for any Unit Owner's Terrace shall be within the sole but reasonable discretion of the Condominium Board. Each Residential Unit Owner shall maintain the exterior of the Unit, including but not limited to the windows and Terraces in an aesthetically pleasing manner as determined in the sole discretion of the Condominium Board. The Condominium Board shall have the right to establish requirements and limitations regarding the type, color and amount of fiunishings that a Residential Unit Owner can place on such Unit Owner'