With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Julianne Hough is an American actress.
text_B: Blue Force Tracking is a United States military term for a GPS-enabled system that provides military commanders and forces with location information about friendly -LRB- and despite its name , also hostile -RRB- military forces .. United States. United States. GPS. GPS. In NATO military symbology , blue typically denotes friendly forces .. NATO. NATO. military symbology. military symbology. The system provides a common picture of the location of friendly forces and therefore is referred to as the `` Blue Force '' tracker .
not_related.