; total time: 0.53
; plan length: 18
(fly plane1 city4 city0 fl4 fl3)
(board person4 plane1 city0)
(fly plane1 city0 city1 fl3 fl2)
(fly plane1 city1 city2 fl2 fl1)
(board person2 plane1 city2)
(debark person4 plane1 city2)
(board person6 plane1 city2)
(fly plane1 city2 city1 fl1 fl0)
(debark person2 plane1 city1)
(refuel plane1 city1 fl0 fl1)
(fly plane2 city4 city5 fl3 fl2)
(board person7 plane2 city5)
(fly plane2 city5 city0 fl2 fl1)
(debark person7 plane2 city0)
(refuel plane1 city1 fl1 fl2)
(fly plane1 city1 city4 fl2 fl1)
(debark person6 plane1 city4)
(fly plane1 city4 city1 fl1 fl0)
