Assertion: sibling | /r/HasProperty | 50% related
Facets:
Source sentences:
text: Full siblings (full brothers or full sisters; or brother and sister) have the same biological parents and are 50% related (full siblings share, on average, 50% of their genes out of those that vary among humans).
text: Since full siblings are 50% related and half siblings are 25% related three quarter siblings would be about 37.5% related.