Assertion: hexagon's line | /r/HasProperty | x b
Facets:
Source sentences:
text: The three lines X B , C Y , c b {\displaystyle XB,CY,cb} are x 1 = x 2 p , x 2 = x 3 q , x 3 = x 1 r {\displaystyle x_{1}=x_{2}p,\;x_{2}=x_{3}q,\;x_{3}=x_{1}r} , so they pass through the same point a {\displaystyle a} if and only if r q p = 1 {\displaystyle rqp=1} .