definiens: and mean and respectively . Whenever the context of this Agreement permits, the masculine, feminine or neuter gender, and the singular or plural number, are each deemed to include the others . means calendar days unless otherwise specified . Unless expressly speci fied otherwise, all payments to be made in accordance with or under this Agreement ( or any Ancillary Agreement ) shall be made in U.S. Dollars ( USD$ ) . References in this Agreement to particular sections of a Law shall be deemed to refer to such sections or provisions as they may be amended after the date of this Agreement . The Parties have participated jointly in the negotiation and drafting of this Agreement and in the event an ambiguity or question of intent or interpretation arises, this Agreement shall b e construed as if drafted jointly by the Parties and no presumption or burden of proof shall arise favoring or disfavoring any Party ( or any Affiliate thereof ) by virtue of the authorship of any of the provisions of this Agreement