Mining Products
notation: PRB02
label: Bergbauprodukte @de
type: Concept
narrower: Natural gas

NotationLong
sub property of: notation
definition: EXPERIMENTAL: Notation with blanks and leading zeros for sortability.

Natural gas
notation: PRB02.05
subject of: about
label: Erdgas @de
wikipedia article: Erdgas
wikipedia article: Natural gas
in scheme: ware
NotationLong: PRB02.05
type: Concept
broader: Mining Products