a dispersal point is a mean of preposition
time_point_preposition is temporal_preposition. atelic_directional_preposition is spatial_preposition. locative_preposition is spatial_preposition. directional_preposition is spatial_preposition. spatial_preposition is preposition. temporal_preposition is preposition. accumulation_point is limit_point. time_point_designating_function is unreifiable_function. measure is maneuver.