With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Windsor, Ontario has a past with stories.
text_B: Rackam is a Canadian manufacturer and distributor of solar thermal collectors , and a specialist of industrial energy efficiency and heat transfer processes .. energy efficiency. Efficient energy use. heat transfer processes. heat transfer. The company uses solar heat to create saturated steam , high-temperature oil , and hot water ; this is in turn used for industrial heating , drying , cooling and refrigeration .. heating. heating. drying. drying. cooling. Air cooling. refrigeration. refrigeration. Category  : Engineering companies of Canada. Canada. Canada. Category  : Companies based in Sherbrooke. Sherbrooke. Sherbrooke. Category  : Companies established in 2007. Category  : Privately held companies of Canada. Canada. Canada. Category  : Solar energy companies
not_related.