Some relations are two term relations, e.g. Dave hit Bill.

But some relations involve more than two terms, e.g. Springdale is between Fayetteville and Rogers.

"The relation involved in . . . believing must, if falsehood is to be duly allowed for, be taken to be a relations between several terms, not two." (P 193a)

"What is called belief ... is nothing but this relation of believing ... which relates a mind to several things other than itself." (P 193b)

So Jill's belief that Paul is dead is a relation among Jill, Paul, and death, not a relation of Jill to the fact that Paul is dead.