Man pages matching name rdf::trine::parser::rdfjson in section 3pm:

RDF::Trine::Parser::RDFJSON.3pm.en	debian 10 / librdf-trine-perl
RDF::Trine::Parser::RDFJSON.3pm.en	debian 11 / librdf-trine-perl
RDF::Trine::Parser::RDFJSON.3pm.en	debian 12 / librdf-trine-perl