> ? [some #aviator] [pm#graph1_on_flight [any #flight (^$(no inheritance)$^), pm#from_place: a pm#spatial_object, pm#to_place: a pm#spatial_object, #day_of_the_week: a #day_of_the_week, pm#via_place: a pm#spatial_object, pm#departure_time: a pm#time_measure, pm#arrival_time: a pm#time_measure, may have for pm#relation_from_situation (^$(explore)$^): a pm#thing, pm#agent: an #airplane_pilot, may have for pm#experiencer: several #passenger] ]; //Search time: 4.1e-05 s, printing time: 0.0004 s (according to the Unix function gettimeofday())