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(Q280)
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subclass of
natural material
0 references
material substance
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amount of matter
1 reference
knowledge source
The Geoscience Ontology reference
same as
https://apps.usgs.gov/thesaurus/term-simple.php?thcode=2&code=1427
0 references
http://www.wikidata.org/entity/Q11344
0 references
https://w3id.org/gso/common/Element
0 references