[qantas#graph1_on_QF921
     [qantas#QF921,
          pm#from_place: Oz#Karratha,
          pm#to_place: #Perth,
          pm#departure_time: 16:50,
          pm#arrival_time: 19:05,
          #day_of_the_week: {any pm#workday}]
](15/11/2000);