• https://en.wikipedia.org/wiki/DE-9IM has a list of topological relationship types between 2d-geometrically described places
  • "The Dimensionally Extended nine-Intersection Model (DE-9IM) is a topological model and a standard used to describe the spatial relations of two regions (two geometries in two-dimensions, R2), in Geometry, Point-set topology, Geospatial topology, and fields related to computer spatial analysis. "
• http://schema.org/GeoShape is the closest schema.org currently gets to having a type for geo-spatial geometry.

It would be useful (as discussed 2016-09-19) at W3C/OGC Spatial Data on the Web WG meeting in Lisbon if these could be used within schema.org.