With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: WeChat only includes social services.
text_B: Polyrhaphis pilosa is a species of beetle in the family Cerambycidae .. Cerambycidae. Cerambycidae. Polyrhaphis. Polyrhaphis. beetle. beetle. It was described by Lane in 1965 .. It is known from Bolivia , Ecuador , Guyana , French Guiana , Peru and Suriname .. Bolivia. Bolivia. Ecuador. Ecuador. Guyana. Guyana. French Guiana. French Guiana. Peru. Peru. Suriname. Suriname
not_related.