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

<https://gcmd.earthdata.nasa.gov/kms/concept/7bb3c4cd-cbb4-4c82-997b-d11ecc1cdb9f>
  skos:definition "The number of cycles per unit time of a sound wave."@en ;
  skos:prefLabel "ACOUSTIC FREQUENCY"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/sciencekeywords> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/0517ae1f-7617-4f3b-80cb-649178032825> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/0517ae1f-7617-4f3b-80cb-649178032825>
  skos:prefLabel "OCEAN ACOUSTICS"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/7bb3c4cd-cbb4-4c82-997b-d11ecc1cdb9f> .