What type of expense is janitorial?

Operating Costs means any costs associated with the operation, management, maintenance, repair, replacement, and protection of the Building including, without limitation, costs of heating; cooling; utilities (including any taxes or impositions thereon); insurance; parking lot maintenance, repair, repaving, resurfacing and re-stripping; re-roofing; janitorial and cleaning service; lobby host, if any is provided by Landlord; security services, if any are provided by Landlord; salaries, wages, and other personnel costs of engineers, superintendents, watchmen, and other Building employees, and other employees of Landlord and the employees of Landlord’s agents and contractors allocable to Building or Project-related matters (provided, however, that to the extent that employees of Landlord or employees of Landlord’s agents are not assigned exclusively to the Building or the Project, then Operating Costs will include only the portion of their salaries, wages, and other personnel costs that Landlord allocates to the Building or the Project); charges under all Building and Project maintenance and service contracts, including contracts for chilled water and hot water, boilers, controls, elevators, security systems, exterior window cleaning, landscaping (including new plantings and irrigation), common areas, public areas, lobbies, and Building, Project and Land maintenance; costs of all maintenance and repair, including costs of all warranties included in contracts for the provision of materials or services to the Building to the extent the cost of such warranty is separately stated in such contract; costs of enforcing warranties; costs of supplies that are deducted (and not capitalized) for federal income tax purposes; management fees that are not in excess of the prevailing market rate management fees paid to management organizations managing Comparable Buildings; accounting costs and fees; costs incurred for attorneys or other third parties to appeal or contest Real Estate Tax assessments (as more fully provided in this Section 4), including the costs incurred to review the feasibility thereof; costs of cleaning, decorating, repairing, maintaining, replacing and operating any common areas in the Project; all other costs Landlord incurs to operate, service, maintain, repair and replace the Building, Land and Project; the cost of any capital improvements made by Landlord to the Building and/or Project, or capital assets acquired by Landlord after the Lease Commencement Date in order to comply with any local, state or federal law, ordinance, rule, regulation, code or order of any governmental entity or insurance requirement, including but not limited to, the Americans with Disability Act (each a “Legal Requirement” and collectively, the “Legal Requirements”) with which the Building and/or Project was not required to comply at the Lease Commencement Date, or to comply with any amendment or other change to the enactment or interpretation of any Legal Requirement from its enactment or interpretation at the time of the Lease Commencement Date; and the cost of any capital improvements made by Landlord to the Building and/or Project or capital assets acquired by Landlord after the Lease Commencement Date for the protection of health and safety of the occupants of the Building and/or Project or that are designed to reduce other Operating Costs; provided however, any and all costs of capital improvements or capital assets acquired which are includable in Operating Costs shall be amortized on a straight-line basis over the useful life of the asset, pursuant to Generally Accepted Accounting Principles. Notwithstanding anything to the contrary contained in this Lease, Tenant’s Proportionate Share of Operating Costs shall not include any costs and/or expenses incurred which solely benefit another building (and not the Building or Common Areas) in the Project.