With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Led Zeppelin II was released in the United States on DVD.
text_B: The Polish Baseball and Softball Federation -LRB- Polski Zwiazek Baseballu i Softballu -RRB- , is the governing body of baseball and softball in Poland .. baseball. baseball. softball. softball. Poland. Poland. It is a member of the International Baseball Federation .. International Baseball Federation. International Baseball Federation
not_related.