context: Sunset is located at university. Bulls-eye cannot have a location of sock. Library cannot have a location of smithsonian. University is located at professor. Son cannot have a location of smithsonian. Library is located at book. Bulls-eye is located at professor. Son cannot have a location of library. Book is located at university. Son cannot have a location of holster. Page is located at book. Mammoth in museum is located at sock.
text: Son cannot have a location of professor.