. . . "A child (including natural, adopted, foster and /or step child) and descendent of such person (i.e., grand and great grandchildren), or a brother or sister (including step siblings), parent or ancestor of the parent, stepparent (not including ancestors), aunt or uncle, niece or nephew, in-laws, or any other individual not listed above (i.e., an unrelated individual) who, for the taxable year (1) h" .