With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Hong Kong maintains a separate political system from Japan.
text_B: Sean Patrick Nolin -LRB- born December 26 , 1989 -RRB- is an American professional baseball pitcher who is a free agent .. professional baseball. professional baseball. pitcher. pitcher. He has previously played in Major League Baseball -LRB- MLB -RRB- for the Toronto Blue Jays and Oakland Athletics .. Toronto Blue Jays. Toronto Blue Jays. Oakland Athletics. Oakland Athletics. Major League Baseball. Major League Baseball
not_related.