; total time: 0.18
; plan length: 13
(board person4 plane1 city1)
(zoom plane1 city1 city3 fl6 fl5 fl4)
(debark person4 plane1 city3)
(zoom plane1 city3 city0 fl4 fl3 fl2)
(board person3 plane1 city0)
(board person2 plane1 city0)
(zoom plane1 city0 city3 fl2 fl1 fl0)
(debark person3 plane1 city3)
(debark person2 plane1 city3)
(board person1 plane1 city3)
(refuel plane1 city3 fl0 fl1)
(fly plane1 city3 city2 fl1 fl0)
(debark person1 plane1 city2)
