As used in this Lease and when required by context, each number (singular or plural) shall include all numbers, and each gender shall include all genders. Time is and shall be of essence of each term and provision of this Lease. The term “person” as used herein means person, firm, association or corporation, as the case may be. If Tenant is more than one person, all agreements, conditions, obligations, covenants, warrants of attorney, waivers and releases made by Tenant shall be joint and several, and shall bind and affect all persons who are defined as “Tenant” herein.