@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/aef23021-81c1-4540-a0a5-35c590142a6d>
  skos:changeNote """2018-03-06 13:00:24.0 [tstevens] Move Concepts 
delete broader relation (null); 
add broader relation (HYDROCARBONS [aef23021-81c1-4540-a0a5-35c590142a6d,86415] - CONTAMINANTS [42c6d91b-afef-4638-95c5-0d130828b2e7,84623]); 
""", """2018-03-06 13:42:00.0 [tstevens]  
update PrefLabel (PETROLEUM HYDROCARBONS); 
""" ;
  skos:definition "Organic compounds composed entirely of carbon and hydrogen atoms."@en ;
  skos:prefLabel "PETROLEUM HYDROCARBONS"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/sciencekeywords> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/42c6d91b-afef-4638-95c5-0d130828b2e7> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/42c6d91b-afef-4638-95c5-0d130828b2e7>
  skos:prefLabel "CONTAMINANTS"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/aef23021-81c1-4540-a0a5-35c590142a6d> .