With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Connaught Tunnel is under the Selkirk Mountains' Mount Macdonald.
text_B: Team Czech Republic participated in the International Genetically Engineered Machine -LRB- iGEM -RRB- competition in the year 2015 .. International Genetically Engineered Machine. International Genetically Engineered Machine. It consisted of members from Georgiev Lab located at the University of West Bohemia -LRB- UWB -RRB- and students from the Charles University in Prague .. University of West Bohemia. University of West Bohemia. Charles University in Prague. Charles University in Prague. Category  : Education in the Czech Republic. Category  : Genetic engineering. Category  : Synthetic biology
not_related.