<http://caligraph.org/ontology/Number-one_digital_song_of_2009_(U.S.)>	<http://www.w3.org/2000/01/rdf-schema#label>	"Number-one digital song of 2009 (U.S.)" .
<http://caligraph.org/ontology/Number-one_digital_song_of_2009_(U.S.)>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Number-one_digital_song_of_2009_(U.S.)>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Number-one_digital_song_in_the_United_States> .
<http://caligraph.org/ontology/Number-one_digital_song_of_2009_(U.S.)>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_number-one_digital_songs_of_2009_(U.S.)> .