With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Huntington's disease is genetic.
text_B: Brett Hearn -LRB- born September 1 , 1958 -RRB- is a full-time modified stock car driver from Kinnelon , New Jersey .. New Jersey. New Jersey. modified stock car. Modified stock car racing. He currently races at Lebanon Valley Speedway in Lebanon Valley , New York and at Albany-Saratoga Speedway in Malta , New York .. Lebanon Valley Speedway. Lebanon Valley Speedway. Albany-Saratoga Speedway. Albany-Saratoga Speedway. He is also competitor in the Super DIRTcar Series .. Super DIRTcar Series. Super DIRTcar Series. Hearn has amassed 892 wins in a stock car over the course of his professional career which has spanned four decades .. He won his first-ever Modified feature event at Nazareth Speedway and was the last Modified driver to score a win on the half-mile track because weeks later , the track was torn down to make way for a strip mall and grocery store .. Nazareth Speedway. Nazareth Speedway. He competed in twenty Nationwide Series events in his career , spanning from 1985 to 1989 .. Nationwide Series. Nationwide Series. He earned just one top-ten  : a 10th at Dover International Speedway and earned his best points finish of 41st in 1986 .. Dover International Speedway. Dover International Speedway
not_related.