INPUT TEXT:
John is a man.
Bill is a customer.
Every customer is important.

RULES:
group([property(A,important,pos)]) <- [object(A,customer,countable,na,eq,1)].
object(named('Bill'),'Bill',named,na,eq,1).
object(named('Bill'),customer,countable,na,eq,1).
object(named('John'),'John',named,na,eq,1).
object(named('John'),man,countable,na,eq,1).

SIMPLE RULES:
important(A) <- [customer(A)].
customer(named('Bill')).
man(named('John')).

ANSWERSET #1:
object(named('Bill'),'Bill',named,na,eq,1).
object(named('Bill'),customer,countable,na,eq,1).
object(named('John'),'John',named,na,eq,1).
object(named('John'),man,countable,na,eq,1).
group([property(named('Bill'),important,pos)]).

ANSWERTEXT #1:
Bill is important.
John is a man.
Bill is a customer.