@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_datum_	skos:broader	isac:certain_process_ .
isac:_development_	skos:broader	isac:certain_process_ .
isac:_problem_	skos:broader	isac:certain_process_ .
isac:_process_	skos:broader	isac:certain_process_ .
isac:_drilling_	skos:broader	isac:certain_process_ .
isac:_fact_	skos:broader	isac:certain_process_ .
isac:_time_	skos:broader	isac:certain_process_ .