@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
<http://webisa.webdatacommons.org/concept/_bill_of+lading>	skos:broader	isac:export_document_ .
isac:_invoice_	skos:broader	isac:export_document_ .
isac:packing_list_	skos:broader	isac:export_document_ .