Man pages matching name atteanx::serializer::sparqlhtml in section 3pm:

AtteanX::Serializer::SPARQLHTML.3pm.en	debian 10 / libattean-perl
AtteanX::Serializer::SPARQLHTML.3pm.en	debian 11 / libattean-perl
AtteanX::Serializer::SPARQLHTML.3pm.en	debian 12 / libattean-perl