Table for the 5 triples with object Back Door sorted by label

Subject	Predicate
?:Performance 227 in Studio T1, Transcription Service, Kensington House	ns1:performer
?:Performance 228 in Langham 1	ns1:performer
?:Performance 229 in Langham 1	ns1:performer
?:Performance 230 in Langham 1	ns1:performer
?:Performance 231 in Langham 1	ns1:performer