With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Roman Reigns is not a 2015 Royal Rumble winner.
text_B: The Parkside is a neighborhood in the western San Francisco , California .. It is located in the southern part of the Avenues south of Quintara and north of Sloat Boulevard .. The neighborhood has the unique distinction of more parks per capita than any other neighborhood in San Francisco .. They include  : Parkside Square , Pine Lake , Pine Lake Park -LRB- a.k.a. Dog Park -RRB- , Concert Meadow -LRB- home of famous free summer concerts -RRB- , Charlie Sava Pool -LRB- formerly Carl Larsen Pool -RRB- , Carl Larsen Park , Stern Grove , McCoppin Park , and McCoppin Square .. Carl Larsen Park. Larsen Park. Stern Grove. Sigmund Stern Recreation Grove
not_related.