Man pages matching name atteanx::parser::sparqlxml::saxhandler in section 3pm:

AtteanX::Parser::SPARQLXML::SAXHandler.3pm.en	debian 10 / libattean-perl
AtteanX::Parser::SPARQLXML::SAXHandler.3pm.en	debian 11 / libattean-perl
AtteanX::Parser::SPARQLXML::SAXHandler.3pm.en	debian 12 / libattean-perl