With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Las Vegas is a city with the highest population in Nevada.
text_B: The CARICOM Regional Organisation for Standards and Quality -LRB- CROSQ -RRB- is a regional standards body for the Caribbean Community CARICOM bloc of countries .. standards. International standard. Caribbean Community. Caribbean Community. CARICOM. CARICOM
not_related.