#man-made_fiber__synthetic_fiber__syntheticfiber  created from natural materials or by chemical processes
  supertype:  #fiber__fibre  a slender and greatly elongated solid substance
  subtype:  #acrylic_fiber__acrylicfiber__acrylic  polymerized from acrylonitrile
  subtype:  #nylon.polyamide  a thermoplastic polyamide; a family of high-strength resilient synthetic materials

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