Some missing properties?

[situx]

We miss properties to connect:

• A SRS to its application cases
• A SRS or Datum to its applicable planetary bodies
• A sphere to its planetary body

Proposal:

• gesrs:usage ex:Hydrology whereas ex:Hydrology rdt:type geosrs:SRSApplication
• geosrs_datum:isApplicableTo ex:Earth whereas ex:Earth rdf:type geosrs_planet:Planet
• geosrs_datum:approximates ex:Earth whereas ex:Earth rdf:type geosrs_planet:Planet