With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Chris O'Dowd had a role in an American film.
text_B: The 44th Grand Prix Automobile de Pau -LRB- Pau Grand Prix -RRB- , was the sixth round of the 1984 European Championship for F2 Drivers .. 1984 European Championship for F2 Drivers. 1984 European Formula Two season. Pau. Pau, Pyrenees-Atlantiques. This race was held around the streets of the city of Pau , Pyrenees-Atlantiques , south-western France , on 11 June .. Pau. Pau, Pyrenees-Atlantiques. Pyrenees-Atlantiques. Pyrenees-Atlantiques. France. France
not_related.