(18)The schedule ‘securities note for derivative securities’ should be applicable to securities which are not covered by the other schedules and building blocks. The scope of this schedule is determined by reference to the other two generic categories of shares and debt securities. In order to provide a clear and comprehensive explanation to help investors understand how the value of their investment is affected by the value of the underlying, issuers should be able to use appropriate examples on a voluntary basis. For instance, for some complex derivatives securities, examples might be the most effective way to explain the nature of those securities.