<http://webisa.webdatacommons.org/concept/_mass_at+a+rate>	<http://webisa.webdatacommons.org/ontology#hasHead>	"mass" .
<http://webisa.webdatacommons.org/concept/_mass_at+a+rate>	<http://webisa.webdatacommons.org/ontology#hasPostModifier>	"at a rate" .
<http://webisa.webdatacommons.org/concept/_mass_at+a+rate>	<http://www.w3.org/2000/01/rdf-schema#label>	"mass at a rate" .