With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mexico didn't have a civil war called the War of the Reform.
text_B: The 2002 World Weightlifting Championships were held in Warsaw , Poland from 19 November to 26 November .. 2002 World Weightlifting Championships. 2002 World Weightlifting Championships. Warsaw. Warsaw. Poland. Poland. The women 's 69 kilograms division was staged on 22 and 23 November 2002 .
not_related.