a teacher observes soccer in an preposition
recio is not soccer_player. locative_preposition is spatial_preposition. people is exposed_when_play_soccer. spatial_preposition is preposition. soccer_field has goals_at_opposite_ends preposition_of is preposition. preposition_of is not preposition. recio is soccer_player. spatial_preposition is not preposition. preposition is closed_class_word.