With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Chris O'Dowd starred in Family Tree.
text_B: The Camberwell North by-election , 1944 was a by-election held on 31 March 1944 for the British House of Commons constituency of Camberwell North .. by-election. by-election. British House of Commons. British House of Commons. constituency. United Kingdom constituencies. Camberwell North. Camberwell North ( UK Parliament constituency ). The by-election was triggered by the elevation to the peerage of the town 's Labour Member of Parliament -LRB- MP -RRB- Charles Ammon , who was ennobled as Baron Ammon .. by-election. by-election. Labour. Labour Party ( UK ). Member of Parliament. Member of Parliament. Charles Ammon. Charles Ammon, 1st Baron Ammon. Baron Ammon. Baron Ammon. The Labour candidate was Cecil Manning , who was unopposed by the other parties in the wartime coalition .. Labour. Labour Party ( UK ). Cecil Manning. Cecil Manning. wartime coalition. Coalition Government 1940–1945. The only other candidate was an independent , T. F. Disher , who had also contested the previous general election in 1935 .. The result was one of the lowest turnouts in a by-election on record  : the number of available electors was estimated at around 8,000 , and Manning was elected with just 2,655 votes against Disher 's 674 , a majority of just 1,981 .. by-election. by-election
not_related.