<?xml version="1.0" encoding="UTF-8"?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:obo_purl="http://purl.obolibrary.org/obo/" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:oboinowl_gen="http://www.geneontology.org/formats/oboInOwl#" xmlns:metadata_def="http://data.bioontology.org/metadata/def/" xmlns:metadata="http://data.bioontology.org/metadata/"> <owl:Class rdf:about="http://purl.obolibrary.org/obo/ENVO_01001155"> <rdfs:subClassOf rdf:resource="http://purl.obolibrary.org/obo/ENVO_01001154"/> <rdfs:label xml:lang="en">astrogeological gas</rdfs:label> <rdfs:comment>This is a term native to the fields of planetary science and astrophysics. Hydrogen has a boiling point of 20.271 Kelvin and a melting point of 13.99 Kelvin. Helium has a boiling point of 4.222 Kelvin and a melting point of 0.95 Kelvin.</rdfs:comment> <obo_purl:IAO_0000115>An astrogeological volatile which is composed primarily of chemical compounds with boiling points around those of hydrogen and helium.</obo_purl:IAO_0000115> <oboinowl_gen:inSubset>envoAstro</oboinowl_gen:inSubset> <metadata_def:prefLabel xml:lang="en">astrogeological gas</metadata_def:prefLabel> <oboinowl_gen:hasRelatedSynonym>gas</oboinowl_gen:hasRelatedSynonym> <metadata_def:mappingLoom>astrogeologicalgas</metadata_def:mappingLoom> <metadata_def:mappingSameURI rdf:resource="http://purl.obolibrary.org/obo/ENVO_01001155"/> <metadata:prefixIRI>ENVO:01001155</metadata:prefixIRI> </owl:Class> <rdf:Description rdf:about="http://purl.obolibrary.org/obo/ENVO_01001122"> <obo_purl:RO_0002473> <rdf:Description rdf:about="http://purl.obolibrary.org/obo/ENVO_01001155"> <metadata_def:mappingSameURI rdf:resource="http://purl.obolibrary.org/obo/ENVO_01001155"/> </rdf:Description> </obo_purl:RO_0002473> </rdf:Description> </rdf:RDF>