{ "[PAD]": 19, "[UNK]": 18, "a": 0, "c": 17, "d": 13, "e": 8, "f": 3, "h": 11, "i": 12, "l": 2, "m": 16, "n": 4, "o": 10, "p": 7, "r": 14, "s": 6, "t": 15, "u": 1, "x": 5, "|": 9 }