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Source Code
Random
Sibling's great-great-grandchild.
great-great-great-nibling.
Child of their maternal first cousin’s child with the paternal first cousin’s child or double-first cousin’s grandchild.
My double-great-cousin-nibling is a good person.
1. The grandchild-in-law of one's sibling.
2. The grandchild of one's spouse's sibling.
My great-nibling-in-law is a good person.