anchor.diff:                      cs,(Token.Value (v.Trim()))
               else
                   cs,(Token.Section (k.Trim(),v.Trim()))
  -
  +        
           ///Iterates over an input sequence of strings and returns a sequence containing the corresponding token for each entry.
           let private tokenizer (input:seq<string>) =
               let en = input.GetEnumerator()
  
positive.code: 
  ///functions for reading and writing GenBank(.gb) files
  module GenBank =
  
      open System
      open FSharp.Care
      open FSharp.Care.IO
  
negative.code:             []
      
      ///Returns all features of a GenBank file representation
      let getFeatures (gb:Dictionary<string,GenBankItem<'a>>) =
          if gb.ContainsKey("FEATURES") then
              match gb.["FEATURES"] with 
              |Features f
  