Shoreline
| Basic: |
| A shoreline is a type of outdoor location, solid ground, and the union of { valleys, shorelines }. |
| Documentation: |
| Comment: A specialization of LandTopographicalFeature . Each instance of #$Shoreline is a region along an edge of a BodyOfWater . <p> Specializations of #$Shoreline include Beach, Seacoast, and Riverbank. |
| Structure: |
| Some shoreline is in every landmass and every island or island group. Every shoreline is in some landmass. |
| Miscellaneous: |
| Types of shoreline include beaches, streambanks, and coastlines. |
| No shoreline is a landmass. |