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 I03 Human Activities D006802 +
  I03.450 Leisure Activities D007899 +
   I03.450.642 Recreation D011998 +
    I03.450.642.845 Sports D013177 +
      I03.450.642.845.110 Baseball D001484 
      I03.450.642.845.117 Basketball D001490 
      I03.450.642.845.140 Bicycling D001642 
      I03.450.642.845.210 Boxing D001914 
      I03.450.642.845.300 Football D005538 
      I03.450.642.845.400 Golf D006055 
      I03.450.642.845.417 Gymnastics D006173 
      I03.450.642.845.475 Hockey D006688 
      I03.450.642.845.582 Mountaineering D009051 
      I03.450.642.845.610 Running D012420 +
      I03.450.642.845.700 Skating D012861 
      I03.450.642.845.800 Soccer D012916 
      I03.450.642.845.869 Swimming D013550 
      I03.450.642.845.925 Track and Field D014142 
      I03.450.642.845.950 Weight Lifting D014891 
      I03.450.642.845.975 Wrestling D014952 
      I03.450.642.845.600 Racquet Sports D015865 +
      I03.450.642.845.940 Walking D016138 
      I03.450.642.845.560 Martial Arts D016139 +
      I03.450.642.845.787 Snow Sports D038161 +