#step  the act of changing location by raising the foot and setting it down; "he walked with unsteady steps"
  supertype:  #locomotion__travel  self-propelled movement
  subtype:  #pace__stride__tread  a step in walking or running
  subtype:  #trip.step  a light or nimble tread; "he heard the trip of women's feet overhead"
  subtype:  #sidestep  a step to one side (as in boxing or dancing)
  subtype:  #footstep  the act of taking a step in walking

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