With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Bill Gates was born.
text_B: `` Too Good To Be Forgotten '' is a song by John Holt however it was a bigger hit for Amazulu in 1986 from their album Amazulu .. Amazulu. Amazulu ( band ). John Holt. John Holt ( singer ). It reached no. 5 on the UK Singles chart , making it their highest charting & only top 10 single on that chart .
not_related.