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<http://webisa.webdatacommons.org/prov/405559859>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/282896529> .
<http://webisa.webdatacommons.org/282896529>	<http://www.w3.org/ns/prov#value>	"Many wells produce both gas and hydrocarbon liquids\" such as ethane, propane and butane." .
<http://webisa.webdatacommons.org/282896529>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<usf.edu> .