(package1 OBJECT) (package2 OBJECT) (package3 OBJECT) (package4 OBJECT) (package5 OBJECT) (package6 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 package4 pgh-po) (at package5 pgh-po) (at package6 la-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 la-po) (at package4 la-airport) (at package5 bos-po) (at package6 pgh-po))