code: def sent2features(sentence, template):
      """extract features in a sentence
  
      :type sentence: list of token, each token is a list of tag
      """
      return [
          word2features(sentence, i, template)
          for i in range(len(sentence))
      ]
  
file_path: underthesea/underthesea/feature_engineering/feature.py
imports: import re
  from os.path import join, dirname
  from underthesea.corpus import DictionaryLoader
label_desc: Use image node_id 9 for calling a global function with example usage: sent2features(sentence, template) and returns: unknown