code: def convert_sentence(text: str) -> List[Tuple[str]]:
      """convert a sentence into two list: phones and tones"""
      syllables = convert_to_pinyin(text)
      phones = []
      tones = []
      for syllable in syllables:
          p, t = split_syllable(syllable)
          phones.extend(p)
          tones.extend(t)
  
      return phones, tones
  
imports: from typing import List, Tuple
  from pypinyin import lazy_pinyin, Style
  from .preprocess_transcription import split_syllable
label_desc: Use image node_id 2 for calling a global function with example usage: convert_sentence(text) and returns: phones,  tones