Assertion: nephew's son | /r/HasProperty | his great-nephew
Facets:
Source sentences:
text: Your father CANNOT say that his son’s (meaning you) sibling’s (meaning your brother) son is his great-nephew, because all of the children of all of his children are his grandchildren, and they are not his great-nephews.
text: The son of a niece is called a "great-nephew.