With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Lumen Pierce is a caricature on Showtime.
text_B: Radoslav Vasilev -LRB- Радослав Василев born 12 October 1990 -RRB- is a Bulgarian footballer who plays as a striker for Septemvri Sofia .. Sofia. Sofia. Septemvri Sofia. PFC Septemvri Sofia. footballer. Association football. striker. Striker ( association football )
not_related.