With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Liberty bonds were sold in 1914.
text_B: Union Avenue Opera -LRB- previously Union Avenue Opera Theatre -RRB- is an opera company based in St. Louis , Missouri .. opera. opera. The company was founded in 1994 by Scott Schoonover , the music director of Union Avenue Christian Church , which serves as the company 's venue in St. Louis ' Visitation Park neighborhood .. Visitation Park. Visitation Park, St. Louis
not_related.