(package1 OBJECT)
(package2 OBJECT)
(package3 OBJECT)
(pgh-truck TRUCK)
(bos-truck TRUCK)
(la-truck TRUCK)
(airplane1 AIRPLANE)
(airplane2 AIRPLANE)
(bos-po LOCATION)
(la-po LOCATION)
(pgh-po LOCATION)
(bos-airport AIRPORT)
(bos-airport LOCATION)
(pgh-airport AIRPORT)
(pgh-airport LOCATION)
(la-airport AIRPORT)
(la-airport LOCATION)
(pgh CITY)
(bos CITY)
(la CITY)

(preconds
 (at package1 pgh-po)
 (at package2 pgh-po)
 (at package3 pgh-po)
 (at airplane1 pgh-airport)
 (at airplane2 pgh-airport)
 (at bos-truck bos-po)
 (at pgh-truck pgh-po)
 (at la-truck la-po)
 (loc-at pgh-po pgh)
 (loc-at pgh-airport pgh)
 (loc-at bos-po bos)
 (loc-at bos-airport bos)
 (loc-at la-po la)
 (loc-at la-airport la))

(effects
 (at package1 bos-po)
 (at package2 la-po)
 (at package3 bos-po))