<http://webisa.webdatacommons.org/concept/n2_gas_>	<http://webisa.webdatacommons.org/ontology#hasHead>	"gas" .
<http://webisa.webdatacommons.org/concept/n2_gas_>	<http://webisa.webdatacommons.org/ontology#hasPreModifier>	"n2" .
<http://webisa.webdatacommons.org/concept/n2_gas_>	<http://www.w3.org/2000/01/rdf-schema#label>	"n2 gas" .