sentences: when a river preposition automobile a cube preposition , ergonal predator occurs
docs: biventricular_pacing is surgical_eps_procedure. reverse is opposition. atelic_directional_preposition is spatial_preposition. if apprehend occurs then fear occurs. directional_preposition is spatial_preposition. if rappel occurs then mountaineer occurs. if indent occurs then hit occurs. if strickle occurs then smooth occurs. if line_up occurs then wait occurs. circumposition is adposition.