; total time: 0.01
; plan length: 11
(board person4 plane1 city1)
(fly plane1 city1 city0 fl6 fl5)
(board person2 plane1 city0)
(board person3 plane1 city0)
(fly plane1 city0 city3 fl5 fl4)
(board person1 plane1 city3)
(debark person2 plane1 city3)
(debark person3 plane1 city3)
(debark person4 plane1 city3)
(fly plane1 city3 city2 fl4 fl3)
(debark person1 plane1 city2)
