E -> [(, F, E']
  E' -> [), =, RL, E]
    RL -> [R, R']
      R -> [RF, R]
        RF -> [E]
        R -> []
      R' -> [|, RL]
          RL -> [R, R']
            R -> [RF, R]
              RF -> [(, RR]
                RR -> [(, E, ), )]
              R -> []
            R' -> [.]
    E -> [(, T, E']
                  E' -> [), =, RL, E]
                    RL -> [R, R']
                      R -> [RF, R]
                        RF -> [(, RR]
                          RR -> [T1, )]
                        R -> [RF, R]
                            RF -> [(, RR]
                              RR -> [T1, )]
                            R -> []
                      R' -> [.]
                    E -> [(, T1, E']
                                E' -> [), =, RL, E]
                                  RL -> [R, R']
                                    R -> [RF, R]
                                      RF -> [*]
                                      R -> [RF, R]
                                        RF -> [(, RR]
                                          RR -> [T1, )]
                                        R -> [RF, R]
                                            RF -> [(, RR]
                                              RR -> [E, )]
                                            R -> []
                                    R' -> [|, RL]
                                                RL -> [.]
                                  E -> [(, E, E']
                                                  E' -> [T, ), =, RL, E]
                                                    RL -> [R, R']
                                                      R -> [RF, R]
                                                        RF -> [(, RR]
                                                          RR -> [E1, )]
                                                        R -> [RF, R]
                                                            RF -> [(, RR]
                                                              RR -> [E1, )]
                                                            R -> []
                                                      R' -> [.]
                                                    E -> [(, E1, E']
                                                                E' -> [), =, RL, E]
                                                                  RL -> [R, R']
                                                                    R -> [RF, R]
                                                                      RF -> [+]
                                                                      R -> [RF, R]
                                                                        RF -> [(, RR]
                                                                          RR -> [E1, )]
                                                                        R -> [RF, R]
                                                                            RF -> [(, RR]
                                                                              RR -> [T, )]
                                                                            R -> []
                                                                    R' -> [|, RL]
                                                                                RL -> [.]
                                                                  E -> []