Constructed the Gantt chart based on the content provided but it doesn't look the same. Any recommendations as to why? Please see the attached inputs.

ACTIVITY PLAN PLAN START DURATION Aircraft stops at gate O H Jet bridge connected 1 5 Passengers deplane 6 10 Baggage offloaded 1 15 Refueling/water servicing 16 25 Gallery servicing 16 20 Cabin cleaning 16 20 Baggage loaded 16 15 Passengers boarded 41 15 Aircraft ready for departure 57 0Activity Description Immediate Predecessors Time (Min) Aircraft stops at the gate :00 Jet bridge connected A :05 Passengers deplane B :10 Baggage offloaded :15 Refueling/water servicing :25 - - I Q T mg OW D Gallery servicing :20 Cabin cleaning C :20 Baggage loaded D :15 Passengers boarded E, F, G :15 Aircraft ready for departure H