With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Reese Witherspoon's breakthrough song was in Legally Blonde.
text_B: Campo Santo -LRB- Salta -RRB- is a town and municipality in Salta Province in northwestern Argentina .. Province. Provinces of Argentina. Salta Province. Salta Province. Argentina. Argentina
not_related.