@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_am_	skos:broader	isac:modulation_format_ .
isac:_pam_	skos:broader	isac:modulation_format_ .
isac:amplitude_modulation_	skos:broader	isac:modulation_format_ .
isac:_qam_	skos:broader	isac:modulation_format_ .
isac:optical_modulator_	skos:broader	isac:modulation_format_ .
isac:_ofdm_	skos:broader	isac:modulation_format_ .
isac:_16-qam_	skos:broader	isac:modulation_format_ .
isac:_qpsk_	skos:broader	isac:modulation_format_ .