Landlord’s Repair Obligations If this Lease does not terminate with respect to the entire Premises under Section 12.1 and the Taking includes a portion of the Premises, this Lease automatically terminates as to the portion of the Premises taken as of the date the Condemning Authority takes possession of the portion taken and Landlord will, at its sole cost and expense, restore the remaining portion of the Premises to a complete architectural unit with all commercially reasonable diligence and speed and will reduce the Basic Rent for the period after the date the Condemning Authority takes possession of the portion of the Premises taken to a sum equal to the product of the Basic Rent provided for in this Lease multiplied by a fraction, the numerator of which is the rentable area of the Premises after the Taking and after Landlord restores the Premises to a complete architectural unit, and the denominator of which is the rentable area of the Premises prior to the Taking. Tenant’s obligation to pay Basic Rent will xxxxx on a proportionate basis with respect to that portion of the Premises remaining after the Taking that Tenant is unable to use during Landlord’s restoration for the period of time that Tenant is unable to use such portion of the Premises.