Choir is located at archeological digsite. Library is located at desert section of town. Child is located at library. Marker is located at book. Marker cannot have a location of shark-infested water. Library is a good place to study. Marker cannot have a location of lift. Reader is located at library. Book is located at reader. Sheet is located at desert section of town. Sheet cannot have a location of archeological digsite.
Book cannot have a location of library.