<http://ns.inria.fr/covid19/PMC7005712#body_text>	<http://purl.org/dc/terms/subject>	"Electronic circuits" .
<http://ns.inria.fr/covid19/PMC7005712#body_text>	<http://purl.org/dc/terms/subject>	"American companies established in 1939" .
<http://ns.inria.fr/covid19/PMC7005712#body_text>	<http://purl.org/dc/terms/subject>	"Computer-related introductions in 1949" .