RDF example/dummy output from the OpenStreetMap API(OpenHistoricalMap).

output.rdf

<?xml version="1.0"?>
<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:ohmdm="http://schemas.openhistoricalmap.org/#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:owl="http://www.w3.org/2002/07/owl#">
	<rdf:Description xmlns:tags="http://schemas.openhistoricalmap.org/tag#" xmlns:element="http://schemas.openhistoricalmap.org/element#" rdf:about="http://www.openhistoricalmap.org/way/198179683">
		<ohmdm:createdDate>2015-03-06</ohmdm:createdDate>
		<ohmdm:latestChangeDate>2015-04-11</ohmdm:latestChangeDate>
		<ohmdm:elementType rdf:resource="http://schemas.openhistoricalmap.org/element#way"/>
		<ohmdm:osmVersion>0.6</ohmdm:osmVersion>
		<ohmdm:osm format="XML">http://www.openhistoricalmap.org/api/0.6/way/198179683</ohmdm:osm>

		<ohmdm:changeset>1141</ohmdm:changeset>
		<ohmdm:version>8</ohmdm:version>
		<ohmdm:user>Abbe98</ohmdm:user>
		<ohmdm:userId>204</ohmdm:userId>

		<ohmdm:commonElement>barrier:city_wall</ohmdm:commonElement>
		<ohmdm:commonElementLabel>City Wall</ohmdm:commonElementLabel>
		<ohmdm:name>Visby Ringmur</ohmdm:name>
		<ohmdm:name xml:lang="en">City wall of Visby</ohmdm:name>
		
		<ohmdm:contains rdf:resource="http://www.openhistoricalmap.org/way/2083278729" />
		<ohmdm:is_described_by rdf:resource="http://www.platsr.se/platsr/visa/plats/id/51000000025180" />
		<ohmdm:is_described_by rdf:resource="http://www.platsr.se/platsr/visa/plats/id/51000000025120" />
	</rdf:Description>

	<rdf:Description rdf:about="n2083278729">
		<ohmdm:relation rdf:resource="http://schemas.openhistoricalmap.org/relations#contains"/>
		<ohmdm:platform rdf:resource="http://schemas.openhistoricalmap.org/platforms#openhistoricalmap"/>
		<ohmdm:format rdf:resource="http://schemas.openhistoricalmap.org/format#xml"/>
	</rdf:Description>
	<rdf:Description rdf:about="n2083278782">
		<ohmdm:relation rdf:resource="http://schemas.openhistoricalmap.org/relations#contains"/>
		<ohmdm:platform rdf:resource="http://schemas.openhistoricalmap.org/platforms#openhistoricalmap"/>
		<ohmdm:format rdf:resource="http://schemas.openhistoricalmap.org/format#xml"/>
	</rdf:Description>
	<rdf:Description rdf:about="http://www.platsr.se/platsr/visa/plats/id/51000000025180">
		<ohmdm:relation rdf:resource="http://schemas.openhistoricalmap.org/relations#is_described_by"/>
		<ohmdm:platform rdf:resource="http://schemas.openhistoricalmap.org/platforms#platsr"/>
		<ohmdm:format rdf:resource="http://schemas.openhistoricalmap.org/format#presentation"/>
	</rdf:Description>
	<rdf:Description rdf:about="http://www.platsr.se/platsr/visa/plats/id/51000000025120">
		<ohmdm:relation rdf:resource="http://schemas.openhistoricalmap.org/relations#is_described_by"/>
		<ohmdm:platform rdf:resource="http://schemas.openhistoricalmap.org/platforms#platsr"/>
		<ohmdm:format rdf:resource="http://schemas.openhistoricalmap.org/format#presentation"/>
	</rdf:Description>
	<rdf:Description rdf:about="http://kulturarvsdata.se/raa/fmi/10097601050001">
		<ohmdm:relation rdf:resource="http://schemas.openhistoricalmap.org/relations#is_described_by"/>
		<ohmdm:platform rdf:resource="http://schemas.openhistoricalmap.org/platforms#soch"/>
		<ohmdm:format rdf:resource="http://schemas.openhistoricalmap.org/format#rdf"/>
	</rdf:Description>
	<rdf:Description rdf:about="Q1474383">
		<ohmdm:relation rdf:resource="http://schemas.openhistoricalmap.org/relations#is_described_by"/>
		<ohmdm:platform rdf:resource="http://schemas.openhistoricalmap.org/platforms#wikidata"/>
				<ohmdm:format rdf:resource="http://schemas.openhistoricalmap.org/format#presentation"/>
	</rdf:Description>
	<rdf:Description rdf:about="http://www.europeana.eu/portal/record/9200109/1340D48C2E753BAB387451B4CF6A0C2C5C5E56FC.html">
		<ohmdm:relation rdf:resource="http://schemas.openhistoricalmap.org/relations#is_related_to"/>
		<ohmdm:platform rdf:resource="http://schemas.openhistoricalmap.org/platforms#europeana"/>
		<ohmdm:format rdf:resource="http://schemas.openhistoricalmap.org/format#presentation"/>
	</rdf:Description>
	<rdf:Description rdf:about="http://www.europeana.eu/portal/record/2058704/File_Visby_ringmur_DSC_0782_jpg.html">
		<ohmdm:relation rdf:resource="http://schemas.openhistoricalmap.org/relations#is_visualised_by"/>
		<ohmdm:platform rdf:resource="http://schemas.openhistoricalmap.org/platforms#europeana"/>
		<ohmdm:format rdf:resource="http://schemas.openhistoricalmap.org/format#presentation"/>
	</rdf:Description>
	<rdf:Description rdf:about="http://kulturarvsdata.se/raa/kmb/16000300024304">
		<ohmdm:relation rdf:resource="http://schemas.openhistoricalmap.org/relations#is_visualised_by"/>
		<ohmdm:platform rdf:resource="http://schemas.openhistoricalmap.org/platforms#soch"/>
		<ohmdm:format rdf:resource="http://schemas.openhistoricalmap.org/format#rdf"/>
	</rdf:Description>
	<rdf:Description rdf:about="http://kulturarvsdata.se/vbg/photo/VMO04669">
		<ohmdm:relation rdf:resource="http://schemas.openhistoricalmap.org/relations#is_visualised_by"/>
		<ohmdm:platform rdf:resource="http://schemas.openhistoricalmap.org/platforms#soch"/>
		<ohmdm:format rdf:resource="http://schemas.openhistoricalmap.org/format#rdf"/>
	</rdf:Description>
	<rdf:Description rdf:about="http://commons.wikimedia.org/wiki/File:Insida_av_Visby_ringmur.jpg">
		<ohmdm:relation rdf:resource="http://schemas.openhistoricalmap.org/relations#is_visualised_by"/>
		<ohmdm:platform rdf:resource="http://schemas.openhistoricalmap.org/platforms#wikimedia_commons"/>
		<ohmdm:format rdf:resource="http://schemas.openhistoricalmap.org/format#presentation"/>
	</rdf:Description>
	<rdf:Description rdf:about="http://commons.wikimedia.org/wiki/File:Visby_stadtmauer.jpg">
		<ohmdm:relation rdf:resource="http://schemas.openhistoricalmap.org/relations#is_visualised_by"/>
		<ohmdm:platform rdf:resource="http://schemas.openhistoricalmap.org/platforms#wikimedia_commons"/>
		<ohmdm:format rdf:resource="http://schemas.openhistoricalmap.org/format#presentation"/>
	</rdf:Description>
	<rdf:Description rdf:about="http://commons.wikimedia.org/wiki/File:Visby_ringmur_Gotland.jpg">
		<ohmdm:relation rdf:resource="http://schemas.openhistoricalmap.org/relations#is_visualised_by"/>
		<ohmdm:platform rdf:resource="http://schemas.openhistoricalmap.org/platforms#wikimedia_commons"/>
		<ohmdm:format rdf:resource="http://schemas.openhistoricalmap.org/format#presentation"/>
	</rdf:Description>
	<rdf:Description rdf:about="http://commons.wikimedia.org/wiki/File:Visby_ringmur_östra_dele">
		<ohmdm:relation rdf:resource="http://schemas.openhistoricalmap.org/relations#is_visualised_by"/>
		<ohmdm:platform rdf:resource="http://schemas.openhistoricalmap.org/platforms#wikimedia_commons"/>
		<ohmdm:format rdf:resource="http://schemas.openhistoricalmap.org/format#presentation"/>
	</rdf:Description>
	<rdf:Description rdf:about="w7979178">
		<ohmdm:relation rdf:resource="http://schemas.openhistoricalmap.org/relations#same_as"/>
		<ohmdm:platform rdf:resource="http://schemas.openhistoricalmap.org/platforms#openstreetmap"/>
		<ohmdm:format rdf:resource="http://schemas.openhistoricalmap.org/format#xml"/>
	</rdf:Description>
</rdf:RDF>

Here's my suggestion: https://gist.github.com/jiemakel/6cff0d78de47d7b098f7