a travel point is a mean of preposition
time_point_preposition is temporal_preposition. atelic_directional_preposition is spatial_preposition. control_point is tactical_point. preposition_of is preposition. directional_preposition is spatial_preposition. set_point is point. control_point is general_point. general_point is tactical_point. pressure_point is point. telic_directional_preposition is spatial_preposition.