sentences: a wig is a mean of preposition
docs: wig is covering. atelic_directional_preposition is spatial_preposition. trope is rhetorical_device. wig is hairpiece. preposition_of is preposition. locative_preposition is spatial_preposition. wig is non_powered_device. directional_preposition is spatial_preposition. spatial_preposition is preposition. horsehair_wig is wig.