fix list index out of range error (#2122)

Nixon

2024-10-09 5dbe6898cac191d12c487772d7336ab2b2a9c350

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from fun_text_processing.text_normalization.en.taggers.tokenize_and_classify import ClassifyFst
from fun_text_processing.text_normalization.en.verbalizers.verbalize import VerbalizeFst
from fun_text_processing.text_normalization.en.verbalizers.verbalize_final import VerbalizeFinalFst