(jar (id 1))
(jar (id 2))
(jar (id 3))
(bean (id 1) (colour black) (jarId 1))
(bean (id 2) (colour black) (jarId 2))
(bean (id 3) (colour white) (jarId 3))
(bean (id 4) (colour white) (jarId 1))
(bean (id 5) (colour black) (jarId 3))
(bean (id 6) (colour white) (jarId 1))
(drawEvent (id 1) (jarId 3) (colour white))
(drawEvent (id 2) (jarId 1) (colour white))
(drawEvent (id 3) (jarId 2) (colour black))
(drawEvent (id 4) (jarId 1) (colour black))
(drawEvent (id 5) (jarId 1) (colour white))
(drawEvent (id 6) (jarId 3) (colour black))