text: import re, os
  from config import *
  
  in_path = os.path.join(RESULT_DIR, "analysis", "0.8.txt")
  out_path = os.path.join(RESULT_DIR, "analysis", "0.8_blank.txt")
  visited = set()
  with open(in_path) as fin, open(out_path, "w") as fout:
      p = re.compile("\[\([\'\"](.+)[\'\"], [\'\"](.+)[\'\"]\)\]")
      for line in fin.readlines():
          if line.startswith("["):
              res = p.match(line)
              if res is None:
                  print(line)
              w1 = res.group(1)
              w2 = res.group(2)
              if (w1, w2) not in visited and (w2, w1) not in visited:
                  fout.write("{},{}\n".format(w1, w2))
                  visited.add((w1, w2))
  