Random triples
| Subject | Object |
|---|---|
| gptkb:U.S._Bicycle_Route_System | routes must be suitable for bicycle travel |
| gptkb:U.S._Bicycle_Route_System | routes must connect to other USBR routes, state lines, or major destinations |
| gptkb:U.S._Bicycle_Route_System | routes must be at least 50 miles long |