<http://ns.inria.fr/covid19/PMC7114114#body_text>	<http://purl.org/dc/terms/subject>	"May observances" .
<http://ns.inria.fr/covid19/PMC7114114#body_text>	<http://purl.org/dc/terms/subject>	"April observances" .
<http://ns.inria.fr/covid19/PMC7114114#body_text>	<http://purl.org/dc/terms/subject>	"Public holidays in the United Kingdom" .