rents as used in subdivision (i) of this subparagraph means amounts received for the use of, or right to use, property (whether real or personal) of the corporation, whether or not such amounts constitute 50 percent or more of the gross income of the corporation for the taxable year. The termrentsdoes not include payments for the use or occupancy of rooms or other space where significant services are also rendered to the occupant, such as for the use or occupancy of rooms or other quarters in hotels, boarding houses, or apartment houses furnishing hotel services, or in tourist homes, motor courts, or motels. Generally, services are considered rendered to the occupant if they are primarily for his convenience and are other than those usually or customarily rendered in connection with the rental of rooms or other space for occupancy only. The supplying of maid service, for example, constitutes such services; whereas the furnishing of heat and light, the cleaning of public entrances, exits, stairways, and lobbies, the collection of trash, etc., are not considered as services rendered to the occupant. Payments for the use or occupancy of entire private residences or living quarters in duplex or multiple housing units, of offices in an office building, etc., are generallyrentsunder section 1244(c)(1)(C). Payments for the parking of automobiles ordinarily do not constitute rents. Payments for the warehousing of goods or for the use of personal property do not constitute rents if significant services are rendered in connection with such payments.