code: def read_alignedsent_block(stream):
      s = ""
      while True:
          line = stream.readline()
          if line[0] == "=" or line[0] == "\n" or line[:2] == "\r\n":
              continue
          # End of file:
          if not line:
              if s:
                  return [s]
              else:
                  return []
          # Other line:
          else:
              s += line
              if re.match(r"^\d+-\d+", line) is not None:
                  return [s]
  
imports: import bisect
  import os
  import pickle
  import re
  import tempfile
  from functools import reduce
  from xml.etree import ElementTree
  from nltk.data import FileSystemPathPointer, PathPointer, SeekableUnicodeStreamReader, ZipFilePathPointer
  from nltk.internals import slice_bounds
  from nltk.tokenize import wordpunct_tokenize
  from nltk.util import AbstractLazySequence, LazyConcatenation, LazySubsequence
label_desc: Use image node_id 6 for calling a global function with example usage: read_alignedsent_block(stream) and returns: list, list, list