definiens: ; ( vi ) the term or means or ; and ( vii ) references to any agreement, instrument or other document in this Agr eement refer to such agreement, instrument or other document as originally executed or, if subsequently amended, replaced or supplemented from time to time, as so amended, replaced or supplemented and in effect at the relev ant time of reference thereto . Whenever this Agreem ent refers to a number of days, such number shall refer to cal endar days unless Business Days are specified . The headings and captions of this Agreement are for convenience of reference only and in no way define, describe, e xtend, or limit the scope or intent of this Agreement or the intent of any provision contained in this Agreement . Finally, in every instance throughout this Agreement, where one Party is to give the other Party a communication in writing, it is the Parties ’ intention that email shall suffi ce as a written instrument, so long as the Party re ceiving such email acknowledges receipt by replying to the sending Par ty ( with the understanding that a reply email may, in fact, be directed to someone other than the original individ ual at the sending Party )