With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: England is the location of the 2017 Open Championship.
text_B: The 2017 Open Championship will be the 146th Open Championship , held 20 -- 23 July 2017 at Royal Birkdale Golf Club in Southport , England.It will be the 10th Open Championship played at Royal Birkdale .. Southport. Southport. England. England. Royal Birkdale Golf Club. Royal Birkdale Golf Club. Open Championship. Open Championship
related.