The descriptive headings of this Agreement are inserted for convenience only and do not constitute a substantive part of this Agreement.  Whenever required by the context, any pronoun used in this Agreement will include the corresponding masculine, feminine or neuter forms, and the singular forms of nouns, pronouns, and verbs will include the plural and vice versa.  Reference to any agreement, document, or instrument means such agreement, document, or instrument as amended or otherwise modified from time to time in accordance with the terms thereof, and if applicable hereof.  The use of the words “include” or “including” in this Agreement will be by way of example rather than by limitation.  The use of the words “or,” “either” or “any” will not be exclusive.  The parties hereto have participated jointly in the negotiation and drafting of this Agreement.  In the event an ambiguity or question of intent or interpretation arises, this Agreement will be construed as if drafted jointly by the parties hereto, and no presumption or burden of proof will arise favoring or disfavoring any party by virtue of the authorship of any of the provisions of this Agreement.  The parties agree that prior drafts of this Agreement will be deemed not to provide any evidence as to the meaning of any provision hereof or the intent of the parties hereto with respect hereto.