With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: London has an elected official.
text_B: Lake District or Edmonton North is a residential area in the northeast portion of the City of Edmonton in Alberta , Canada .. Edmonton. Edmonton. City. List of cities in Alberta. Alberta. Alberta. Canada. Canada. It was established in 1979 through Edmonton City Council 's adoption of the Edmonton North Area Structure Plan , which guides the overall development of the area .. Edmonton. Edmonton. City. List of cities in Alberta. Edmonton City Council. Edmonton City Council
not_related.