Subtenant shall not assign, sublet, transfer, pledge, hypothecate or otherwise encumber the Sublease Premises, this Sublease or any interest therein, or permit the use or occupancy of the Sublease Premises by any other person other than Subtenant, without the prior written consent of Sublandlord and Master Landlord, under the terms and conditions of the Master Lease. Any transfer, circumstance or event which constitutes an assignment of subletting under the Master Lease shall constitute an assignment or subletting under this Sublease.