No Populate Variable in Loop Each rumtine, Why?

Hello, I am learning elixir and I am not managing to populate my variables at runtime … inside a loop .. Why do the variables go blank again every time?

def teste do
    t = String.split("sentence  [sentence]  <sem-s> N F S  @NPHR §DENOM #3->0", " ", trim: true)
    token = ""
    lemma = ""
    syntax = ""
    role = ""
    child = ""
    root = ""
    tags = []
    attrs = []
    t
    |> Enum.with_index()
    |> Enum.each(fn {e, i} ->
      if i == 0 do
        token = e
      else
        # Verb
        if i == 1 do
          lemma = e
        else
          # Syntax
          if i == Enum.count(t) - 3 do
            syntax = e
          else
            # Role
            if i == Enum.count(t) - 2 do
              role = e
            else
              # Dependency
              if i == Enum.count(t) - 1 do
                e = String.replace(e, "#", "")
                e = String.replace(e, "-", "")
                child = Text.mid(e, String.slice(e, 0..0), ">")
                root = Text.mid(e, ">")

                # ===================================================
                #Last Index >> Get All Variables and Inser in Mnesia
                # ===================================================
                IO.puts ">> #{token} >> #{lemma} >> #{syntax} >> #{role}"

              else
                # Tags
                if String.contains?(e, ["<", ">"]) == true do
                  [e | tags]
                else
                  # Attributes
                  [e | attrs]
                end
              end
            end
          end
        end
      end
    end)
  end