@prefix skos: . skos:broader . @prefix isac: . isac:mountain_lion_ skos:broader . isac:_tiger_ skos:broader . skos:broader . isac:snow_leopard_ skos:broader . isac:_leopard_ skos:broader . isac:_mavericks_ skos:broader . isac:_lion_ skos:broader . skos:broader . skos:broader . skos:broader . skos:broader .