(create p1)
(fire-one-to-one p1 p2)
(fire-one-to-one p2 p3)
(fire-one-to-one p3 p4)
(fire-one-to-one p4 p5)
(fire-one-to-two p5 p6 p4)
(fire-one-to-one p4 p5)
(fire-one-to-two p5 p6 p4)
(fire-one-to-one p4 p7)
(fire-one-to-two p6 p7 p4)
(fire-one-to-two p7 p5 p4)
(fire-one-to-two p5 p6 p4)
(fire-one-to-two p6 p7 p4)
(fire-one-to-two p7 p5 p4)
(fire-three-to-one p5 p6 p7 p8)
(fire-one-to-one p4 p7)
(fire-one-to-one p4 p5)
(fire-one-to-two p5 p6 p4)
(fire-one-to-one p4 p5)
(fire-three-to-one p5 p6 p7 p8)
(fire-one-to-one p4 p7)
(fire-one-to-one p4 p5)
(fire-one-to-one p4 p6)
(fire-three-to-one p5 p6 p7 p8)
; cost = 24 (unit cost)
