3               4                       6                              6
 |   mapping    |     feeding     |  lexering    |  parsering   |   syntaxing   |  grammaring  |
 |------------- 36' --------------|----------------------------36' ----------------------------|
 |     19'      |        17'      |      13'     |      11'     |       7'      |       5'     |
 +----+----+----+---+----+----+---+---+----+-----+----+----+----+----+----+-----+----+----+----+
 |  1 |  2 |  3 | 4 |  5 |  6 | 7 | 8 |  9 |  10 | 11 | 12 | 13 | 14 | 15 |  16 | 17 | 18 | 19 |
 +----+----+----+---+----+----+---+---+----+-----+----+----+----+----+----+-----+----+----+----+
 |  2 | 60 | 40 | 1 | 30 | 30 | 5 | 1 | 30 | 200 |  8 | 40 | 50 |  1 | 30 | 200 |  8 | 10 | 40 |
 +----+----+----+---+----+----+---+---+----+-----+----+----+----+----+----+-----+----+----+----+
                                                    ↓                              ↓
                                                 4 pairs                        4 pairs