#instep.arch  the arch of the foot
  supertype:  #arch.skeletal_structure  a curved bony structure supporting or enclosing organs (especially arches of the feet)
  subtype:  #sunken_arch  an instep flattened so the entire sole rests on the ground
  part of:  #foot__human_foot__humanfoot__pes__pe  the foot of a human being; "his bare feet projected from his trousers"; "armored from head to foot"
     part of:  #human__man__homo__human_being__humanbeing  any living or extinct member of the family Hominidae
     part of:  #leg  a human limb; commonly used to refer to a whole limb but technically only the part between the knee and ankle
        part of:  #human_body__humanbody__physical_body__material_body__soma__build__figure__physique__anatomy__shape__bod__chassis__frame__form__flesh  alternative names for the body of a human being; "Leonardo studied the human body"; "he has a strong physique"; "the spirit is willing but the flesh is weak"
           part of:  #person__individual__someone__somebody__mortal__human__human_being__humanbeing__soul  a human being; "there was too much for one person to do"

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