├ sport
│ ├ Physical education equipment and supplies
│ │ ├ whistle
│ │ ├ bullhorn
│ │ ├ stopwatch
│ │ ├ signal instrument
│ │ ├ Bib, tusk, potholder
│ │ ├ goal tape
│ │ ├ starting block
│ │ ├ vaulting horse (box)
│ │ ├ tape measure
│ │ ├ line drawing
│ │ ├ electrical tape
│ │ ├ rope
│ │ ├ rope reel
│ │ ├ flag
│ │ ├ Cone, corner point
│ │ ├ landmark
│ │ ├ measuring instrument
│ │ ├ conductor's platform
│ │ ├ souvenir
│ ├ marine sports
│    └ sky sports
│       └ Other Sky Sports Equipment
   └ automobile
      └ Motor Sports Equipment
         ├ face mask
         ├ shoes
         ├ racing suit
         ├ glove (esp. sports)
         └ Other motor sports equipment
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