With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Psychology is a discipline.
text_B: Sub-Zero is a brand of residential major kitchen appliances including refrigeration and wine preservation products built in the USA by the Sub-Zero Freezer Company , Inc. .. kitchen appliances. major appliance. refrigeration. refrigeration. wine preservation. wine preservation. USA. United States. The company also manufactures kitchen appliances under the Wolf brand name .. kitchen appliances. major appliance
not_related.