With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The French Revolution did not cover the years 1789 to 1799.
text_B: The Norwegian Union of Iron and Metalworkers -LRB- Norsk Jern - og Metallarbeiderforbund -RRB- was a trade union in Norway , organized under the national Norwegian Confederation of Trade Unions .. trade union. trade union. Norway. Norway. Norwegian Confederation of Trade Unions. Norwegian Confederation of Trade Unions. It was founded in 1891 .. In 1988 it was merged with the Norwegian Union of Clothing Workers , the Norwegian Union of Building Industry Workers , the Norwegian Union of Paper Industry Workers and the Norwegian Union of Forestry and Land Workers to form the United Federation of Trade Unions .. Norwegian Union of Clothing Workers. Norwegian Union of Clothing Workers. Norwegian Union of Building Industry Workers. Norwegian Union of Building Industry Workers. Norwegian Union of Paper Industry Workers. Norwegian Union of Paper Industry Workers. Norwegian Union of Forestry and Land Workers. Norwegian Union of Forestry and Land Workers. United Federation of Trade Unions. United Federation of Trade Unions
not_related.