(1) A person or a member of a class of persons in whose favour, by the terms of a discretionary trust, capital the subject of the trust may be applied is, for the purposes of this section, a beneficiary of the trust.(a) in the event of the exercise of a power or discretion in favour of the person or class; or(b) in the event that a discretion conferred under the trust is not exercised (2) A beneficiary of a discretionary trust is taken to own or to be otherwise entitled to the property the subject of the trust, unless the Commissioner, being satisfied that the application of this subsection in the particular case would be inequitable, determines otherwise.(3) For the purposes of this Part, any property that is the subject of a discretionary trust is taken to be the subject of any other discretionary trust a beneficiary of it, unless the Commissioner, being satisfied that the application of this subsection in the particular case would be inequitable, determines otherwise.(a) that is; or(b) any trustee of which (in the capacity of trustee) is (4) Subsection (3) extends to apply to property that is the subject of a discretionary trust only by the operation of that subsection.(5) In this section,person includes a private corporation or a subsidiary of a private corporation.