Question: "Your Song" is a song by British singer Rita Ora, with uncredited backing vocals from Ed Sheeran, is an English singer-songwriter, guitarist, and record producer, he attended which organization, in Guildford, Surrey? 
Sentence (from "Ed Sheeran"): Edward Christopher Sheeran, {'1': ", '2': ", '3': ", '4': "} (born 17 February 1991) is an English singer-songwriter, guitarist, and record producer.
Relevant evidence: No