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NAME(ACRONYM)
TYPE
gravel
As with all size-based classifications, there is considerable variation in what is considered gravel.
Raw data
http://purl.obolibrary.org/obo/PATO_0001759
http://purl.obolibrary.org/obo/PATO_0000984
EcoLexicon:gravel
SWEETRealm:Gravel
An environmental material which is composed primarily of pieces of gravel.
http://purl.obolibrary.org/obo/ENVO_00000341
http://www.w3.org/2002/07/owl#Class
http://purl.obolibrary.org/obo/ENVO_01000814