With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Sansa Stark fails to be a person in a narrative work of art.
text_B: Ernest Arnfield was the secretary / manager of Southampton F.C. from 1897 to 1911 , and again from 1912 to 1919 .. manager. manager ( football )
not_related.