All

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 D09 Carbohydrates and Hypoglycemic Agents D002242 +
  D09.203 Carbohydrates D002241 +
   D09.203.698 Polysaccharides D011134 +
    D09.203.698.365 Glucans D005936 +
     D09.203.698.365.180 Cellulose D002482 +
      D09.203.698.365.180.515 Lignin D008031 
 D25 Biomedical and Dental Materials D001697 +
  D25.720 Polymers D011108 +
   D25.720.549 Lignin D008031