With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Shahid Kapoor is an Indian award-ceremony host.
text_B: Duochrome may refer to  :. Duochrome test. Duochrome test. Duochrome test. Duochrome nail polish. nail polish. nail polish. Duochrome -LRB- album -RRB- Dave Cousins 2008
not_related.