Tenant's Right to Terminate: A. Supplementing the provisions of Section 9.01, in the event (a) the Demised Premises or Building shall be damaged by fire or other casualty and Tenant shall be unable to use the Demised Premises as a result of such damage and (b) Owner shall not exercise the right to terminate this Lease in accordance with the provisions of Section 9.01 and shall, accordingly, be obl