| http://www.w3.org/ns/prov#value | - BACKGROUND OF THE INVENTION Known insoles for incorporation in a shoe include those having a forepart which is flexible to permit the shoe to bend as a wearer walks and a more rigid heel seat and waist portion which gives strength to the shoe in the heel seat and waist region thereof and to which the heel of a shoe is commonly attached using suitable fastening members, for example nails or staples
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