Assertion: cave | /r/CapableOf | form along the boundary
Facets:
value: between the light grey sangomore formation
type: LOCATION
value: between the dark grey
type: LOCATION
Source sentences:
text: The cave has formed along the boundary between the light grey Sangomore Formation and the dark grey, mottled Sailmhor Formation (sometimes called Leopard Rock), both of which form part of the Durness Group succession.