With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Charlie Sheen is a television actor.
text_B: The Year of the Yao is a 2004 American documentary film telling the first year of basketball player Yao Ming in the United States .. Yao Ming. Yao Ming. documentary film. documentary film. basketball. basketball. United States. United States. The film is narrated by his friend and former interpreter Colin Pine , who stayed with Yao during Yao 's rookie year , and interpreted for him for three years .. Colin Pine. Colin Pine
not_related.