(let ((cn
       (cp:make-network 'test
			(cp:make-value-model boolean?
					     boolean=?
					     (lambda (x y) #f)))))
  (let ((j1 (cp:make-connector 'j1 cn))
	(j2 (cp:make-connector 'j2 cn))
	(p1 (cp:make-connector 'p1 cn))
	(p2 (cp:make-connector 'p2 cn))
	(t (cp:make-connector 't cn)))
    (cp:assume-value t #t)
    (cp:make-constraint cp:B=~A #f cn j1 p1)
    (cp:make-constraint cp:B=~A #f cn j2 p2)
    (cp:make-constraint cp:C=AvB #f cn t j1 j2)
    (cp:make-constraint cp:C=AvB #f cn t p1 p2)
    (cp:assume-value j2 #t)
    (write-line (cp:value-of j1))
    (write-line (cp:value-of j2))
    (write-line (cp:value-of p1))
    (write-line (cp:value-of p2))
    ))
#f
#t
#t
#f
;Unspecified return value

(let ((cn
       (cp:make-network 'test
			(cp:make-value-model boolean?
					     boolean=?
					     (lambda (x y) #f)))))
  (let ((j1 (cp:make-connector 'j1 cn))
	(j2 (cp:make-connector 'j2 cn))
	(p1 (cp:make-connector 'p1 cn))
	(p2 (cp:make-connector 'p2 cn))
	(t (cp:make-connector 't cn)))
    (cp:assume-value t #t)
    (cp:make-constraint cp:B=~A #f cn j1 p1)
    (cp:make-constraint cp:B=~A #f cn j2 p2)
    (cp:make-constraint cp:C=AvB #f cn t j1 j2)
    (cp:make-constraint cp:C=AvB #f cn t p1 p2)
    (cp:assume-value j1 #t)
    (write-line (cp:value-of j1))
    (write-line (cp:value-of j2))
    (write-line (cp:value-of p1))
    (write-line (cp:value-of p2))
    ))
#t
#f
#f
#t
;Unspecified return value