Assertion: cousin's child | /r/HasProperty | sibling
Facets:
Source sentences:
text: If two persons we'll call Adam and Ada marry and have two children, Bob and Betty – siblings therefore –
text: As you can see, the children of Peter and Earlene are siblings, their grandchildren are first cousins, their great-grandchildren are second cousins, and their great-great-grandchildren are third cousins.
text: In fact, if we regard siblings as 0-level cousins, then this reasoning applies to siblings too: children of 0-level cousins (ie, siblings) are themselves first-cousins.