" . . . who shall reside in the Caretaker's flat rent-free as a licensee on a service basis . . . "
" . . . and by an underlease containing a covenant by the underlessee to pay throughout the term of the underlease a proportionate part of the Lessee's costs of performing the covenants on the part of the Lessee contained in this Lease that the underlessees of the said units do not covenant to perform in their underleases and attributable to the underlet part when apportioned in manner aforesaid."
" . . . the total expenditure incurred by the Lessor in any Accounting Period in carrying out its obligations under Clause 5(5) of this Underlease and all other costs, expenses, outgoings and matters incurred in connection with the maintenance, management and running of the Building including without prejudice to or limitation of the generality of the foregoing the following . . . "
"The cost of employing, maintaining and providing accommodation in the Building for a caretaker including the provision of uniforms and boiler suits and including an annual sum equivalent to the market rent of any accommodation provided rent-free by the Lessor and general and water rates and gas and electricity charges in respect of such accommodation."