About: http://webisa.webdatacommons.org/27792580

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	It even can convert any audio formats, including MP3, WMA, AAC, WAV, OGG, M4A, RA, RAM, AC3, MP2, etc to M4R format as the iPhone ringtone.
http://www.w3.org/ns/prov#wasQuotedFrom	my-guides.net