With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Coldplay performed an acoustic set at the concert in Sydney .
text_B: Appearing with Jet at the Sydney concert were Coldplay , Eskimo Joe , Hoodoo Gurus , Icehouse , Josh Pyke , Little Birdy , The Presets , Wolfmother , You Am I and additional artists .
NOT ENOUGH INFO.