https://y57.net/portal.y57.net

GeoShape

1. https://schema.org/GeoShape
2. https://firebase.google.com/docs/reference/android/com/google/firebase/appindexing/builders/GeoShapeBuilder#setBox(String...)
3. https://firebase.google.com/docs/reference/android/com/google/firebase/appindexing/builders/GeoShapeBuilder#setBox(String)