reactivity can be used to observe distant 78
abstract_theoretical_destination_point is enduring_thing_localized. reflectivity is visible_feature. owl_datatype_property is predicate. positioning_uav_for_observation is controlling_event. owl_property_patient_domain is irreflexive_binary_predicate. delay_position is observation_facilitating_terrain. owl_datatype_property is irreflexive_binary_predicate. reactivity is susceptibility. retreat is signal. owl_property is binary_predicate.