With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Gia is about one of America's first glaciers.
text_B: Middlewood is a north western suburb of Sheffield , South Yorkshire , England .. Sheffield. Sheffield. South Yorkshire. South Yorkshire. The suburb falls within the Stannington ward of the City .. Stannington ward. Stannington ( ward )
not_related.