With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Christine Daaé is a male antagonist.
text_B: The Singapore women 's national under-18 and under-19 basketball team is a national basketball team of Singapore , governed by the Basketball Association of Singapore .. basketball. basketball. Singapore. Singapore. Basketball Association of Singapore. Basketball Association of Singapore. It represents the country in international under-18 and under-19 -LRB- under age 18 and under age 19 -RRB- women 's basketball competitions .. basketball. basketball
not_related.