With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Russell Brand was born in the 1970's.
text_B: Nihal Singh Wala Assembly Constituency -LRB- Sl .. No.  : 71 -RRB- is a Punjab Legislative Assembly constituency in Moga district , Punjab state , India .. Punjab Legislative Assembly. Punjab Legislative Assembly. Moga district. Moga district. Punjab. Punjab, India
not_related.