<?xml version="1.0" encoding="utf-8"?><rdf:RDF  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"  xmlns:skos="http://www.w3.org/2004/02/skos/core#"  xmlns:map="http://www.w3c.rl.ac.uk/2003/11/21-skos-mapping#"  xmlns:dct="http://purl.org/dc/terms/"  xmlns:dc="http://purl.org/dc/elements/1.1/"><skos:ConceptScheme rdf:about="https://symsksdss.ufuture.eu/tematres_sym/vocab/">  <dc:title>SYMSITES</dc:title>  <dc:creator>Klink</dc:creator>  <dc:contributor></dc:contributor>  <dc:publisher></dc:publisher>  <dc:rights></dc:rights>  <dc:subject></dc:subject>  <dc:description><![CDATA[  ]]></dc:description>  <dc:date>2023-07-05</dc:date>  <dct:modified>2025-01-29 17:52:43</dct:modified>  <dc:language>en-EN</dc:language>  </skos:ConceptScheme>  <skos:Concept rdf:about="https://symsksdss.ufuture.eu/tematres_sym/vocab/xml.php?skosTema=215"><skos:prefLabel xml:lang="en-EN">Biogas</skos:prefLabel><skos:hiddenLabel xml:lang="en-EN">Bio-methane</skos:hiddenLabel> <skos:note xml:lang="en-EN">https://ec.europa.eu/eurostat/statistics-explained/index.php?title=Glossary:Biofuels </skos:note> <skos:definition xml:lang="en-EN">Biogas is a gas composed principally of methane and carbon dioxide produced by anaerobic digestion of biomass or by thermal processes from biomass, including biomass in waste. In energy statistics, biogas is a product aggregate equal to the sum of landfill gas, sewage sludge gas, other biogases from anaerobic digestion and biogases from thermal processes.  </skos:definition><skos:inScheme rdf:resource="https://symsksdss.ufuture.eu/tematres_sym/vocab/"/>  <dct:created>2025-05-31 16:17:08</dct:created>  </skos:Concept></rdf:RDF>