<http://webisa.webdatacommons.org/concept/50th_year_>	<http://www.w3.org/2000/01/rdf-schema#label>	"50th year" .
<http://webisa.webdatacommons.org/concept/50th_year_>	<http://webisa.webdatacommons.org/ontology#hasHead>	"year" .
<http://webisa.webdatacommons.org/concept/50th_year_>	<http://webisa.webdatacommons.org/ontology#hasPreModifier>	"50th" .