<http://webisa.webdatacommons.org/concept/_accident_involve+tractor-trailer>	<http://webisa.webdatacommons.org/ontology#hasHead>	"accident" .
<http://webisa.webdatacommons.org/concept/_accident_involve+tractor-trailer>	<http://www.w3.org/2000/01/rdf-schema#label>	"accident involve tractor-trailer" .
<http://webisa.webdatacommons.org/concept/_accident_involve+tractor-trailer>	<http://webisa.webdatacommons.org/ontology#hasPostModifier>	"involve tractor-trailer" .