<http://ns.inria.fr/covid19/PMC7198242#title>	<http://purl.org/dc/terms/subject>	"Open-source hardware" .
<http://ns.inria.fr/covid19/PMC7198242#title>	<http://purl.org/dc/terms/subject>	"Open-source intelligence" .
<http://ns.inria.fr/covid19/PMC7198242#title>	<http://purl.org/dc/terms/subject>	"Open-source video games" .