Assertion: cousin's consanguinity | /r/HasProperty | one-eighth
Facets:
Source sentences:
text: Between first cousins there are two shared ancestors each with four generations of separation, up and down the family tree ( ( 1 2 ) 4 + ( 1 2 ) 4 {\displaystyle \left({\tfrac {1}{2}}\right)^{4}+\left({\tfrac {1}{2}}\right)^{4}} ), therefore their consanguinity is one-eighth.