@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_pc_	skos:broader	isac:first_computer_ .
isac:_instruction_	skos:broader	isac:first_computer_ .
isac:_file_	skos:broader	isac:first_computer_ .
isac:_computer_	skos:broader	isac:first_computer_ .
isac:_game_	skos:broader	isac:first_computer_ .
isac:_internet_	skos:broader	isac:first_computer_ .
isac:second_computer_	skos:broader	isac:first_computer_ .
isac:first_computer_	skos:broader	isac:first_computer_ .
isac:_eniac_	skos:broader	isac:first_computer_ .