| Basic: |
| A peninsula is a type of promontory. |
| Documentation: |
| Comment: A specialization of Promontory . Each instance of #$Peninsula is a protuberance of a geographic land region into water region. The length of a peninsula exceeds the width of its connecting neck. |
| Size: |
- Every peninsula is between 0.05 and 1000 miles wide.
- Every peninsula is between 0.1 and 2000 miles long.
|
| Miscellaneous: |
- Every peninsula borders on some body of water.
- Every peninsula sticks into some body of water.
|
| Every geographical region that is in some peninsula is in some peninsula. |