(1)So much of section 2(1) above as requires an interest qualifying for compensation under this Part of this Act to have been acquired by the claimant before the relevant date shall not apply to any interest acquired by him by inheritance from a person who acquired that interest, or a greater interest out of which it is derived, before the relevant date.
(2)For the purposes of this section an interest is acquired by a person by inheritance if it devolves on him by virtue only of a testamentary disposition or any other deed with testamentary effect taking effect on, or the law of intestate succession as applied to, the death of another person or the successive deaths of two or more other persons.
(3)For the purposes of subsection (2) above a person who acquires an interest in satisfaction or in partial satisfaction of any legacy, share in residue or other share in the estate of a deceased person shall be treated as a person on whom the interest devolves by direct bequest.