With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: University of Oxford does not have a main campus.
text_B: Barnacle Bill -LRB- released in the US as All at Sea -RRB- is a 1957 Ealing Studios comedy film , starring Alec Guinness .. Alec Guinness. Alec Guinness. Ealing Studios. Ealing Studios. comedy film. comedy film. He plays an unsuccessful Royal Navy officer , and six of his maritime ancestors .. Royal Navy. Royal Navy. This was the last film Guinness made for Ealing Studios .. Ealing Studios. Ealing Studios. By coincidence , his first Ealing success was Kind Hearts and Coronets -LRB- 1949 -RRB- , in which he also played multiple roles .. Kind Hearts and Coronets. Kind Hearts and Coronets. The film was written by the screenwriter of Passport to Pimlico .
not_related.