With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mexico does not have the most UNESCO World Heritage Sites in the Americas.
text_B: Handry Lenzun -LRB- born 23 October 1971 -RRB- is an Indonesian fencer .. fencer. fencing. He competed in the individual epee event at the 1992 Summer Olympics .. epee. epee. 1992 Summer Olympics. 1992 Summer Olympics
not_related.