code: def read_ijc_files(input_files, bio_format=True):
      sentences = []
      for input_file in input_files:
          sentences.extend(read_single_file(input_file, bio_format))
      return sentences
  
imports: import argparse
  import random
  import sys
label_desc: Use image node_id 3 for calling a global function with example usage: read_ijc_files(input_files, bio_format) and returns: sentences