(let ((cn (cp:make-network 'test (cp:make-value-model boolean? boolean=?))))
  (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:boolean-not #f cn j1 p1)
    (cp:make-constraint cp:boolean-not #f cn j2 p2)
    (cp:make-constraint cp:boolean-or #f cn t j1 j2)
    (cp:make-constraint cp:boolean-or #f cn t p1 p2)
    (cp:assume-value j2 #t)
    (fresh-line)
    (write-char #\;)
    (write-line (cp:value-of j1))
    (write-char #\;)
    (write-line (cp:value-of j2))
    (write-char #\;)
    (write-line (cp:value-of p1))
    (write-char #\;)
    (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=?))))
  (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:boolean-not #f cn j1 p1)
    (cp:make-constraint cp:boolean-not #f cn j2 p2)
    (cp:make-constraint cp:boolean-or #f cn t j1 j2)
    (cp:make-constraint cp:boolean-or #f cn t p1 p2)
    (cp:assume-value j1 #t)
    (fresh-line)
    (write-char #\;)
    (write-line (cp:value-of j1))
    (write-char #\;)
    (write-line (cp:value-of j2))
    (write-char #\;)
    (write-line (cp:value-of p1))
    (write-char #\;)
    (write-line (cp:value-of p2))
    ))
;#t
;#f
;#f
;#t
;Unspecified return value