5.1.Sen | = | FOR VALUE RECEIVED, {P1.US.N,E,A} (the "{Company}"), hereby promises to pay to the order of {P2.US.N,E,A} (the "{Investor}"), the principal sum of the {Purchase_Price}, together with interest thereon from the {Date_of_Issuance}. Interest shall accrue at the {Interest_Rate}. Unless earlier converted into {Conversion_Shares} pursuant to {Conversion.Xref}, the principal and accrued interest shall be due and payable by {the_Company} on demand by the {Majority_in_Interest} at any time after the {Maturity_Date}. |