For the purposes of this Act, relationships (including the relationship of being family) are taken to include:
(a) relationships between de facto partners (within the meaning of the Acts Interpretation Act 1901 ); and
(b) relationships of child and parent that arise:
(i) if someone is an exnuptial or adoptive child of a person; or
(ii) if someone is the child of a person because of the definition of child in this Act; and
(c) relationships traced through relationships referred to in paragraphs (a) and (b).