With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: David Bowie sold records around the world.
text_B: Sunday 8PM  /  Saturday 3AM is a re-release of the Sunday 8PM album from Faithless .. Faithless. Faithless. Sunday 8PM. Sunday 8PM. The CD contains a bonus CD with remixes .
not_related.