<http://webisa.webdatacommons.org/concept/calcium+ion_ca2%2B_>	<http://webisa.webdatacommons.org/ontology#hasHead>	"ca2+" .
<http://webisa.webdatacommons.org/concept/calcium+ion_ca2%2B_>	<http://www.w3.org/2000/01/rdf-schema#label>	"calcium ion ca2+" .
<http://webisa.webdatacommons.org/concept/calcium+ion_ca2%2B_>	<http://webisa.webdatacommons.org/ontology#hasPreModifier>	"calcium ion" .