<http://webisa.webdatacommons.org/concept/sleep_activity_>	<http://www.w3.org/2000/01/rdf-schema#label>	"sleep activity" .
<http://webisa.webdatacommons.org/concept/sleep_activity_>	<http://webisa.webdatacommons.org/ontology#hasPreModifier>	"sleep" .
<http://webisa.webdatacommons.org/concept/sleep_activity_>	<http://webisa.webdatacommons.org/ontology#hasHead>	"activity" .