With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: In the Midwest, the Republican Party once had a base.
text_B: Heidi Weng -LRB- born 20 July 1991 -RRB- is a Norwegian cross-country skier and fell runner .. cross-country skier. Cross-country skiing. fell runner. fell running
not_related.