[qantas#graph1_on_QF420
     [qantas#QF420,
          pm#from_place: #Melbourne,
          pm#to_place: #Sydney,
          pm#departure_time: 09:30,
          pm#arrival_time: 10:50,
          #day_of_the_week: {any pm#workday,the #Saturday}]
](15/11/2000);