new_contents: # Intended to be used with count_2w.txt which has the following format:
  # A B\tFREQENCY
  # Sometimes "A" is "<S>" for start and "</S>" for end.
  # Output is similar with all output lower-cased (including "<S>" and "</S>").
  import collections
  
  from src.data import data
  
  all_results = collections.defaultdict(int)
  
  for line in data.open_project_path('data/count_2w.txt', errors='ignore'):
    a, b, count = line.split()
    key = ('%s %s' % (a, b)).lower()
    all_results[key] += int(count)
  
  for item in sorted(all_results.items(), key=lambda x: x[1], reverse=True):
    print('%s\t%s' % item)
  
subject: Reformat words_2w.txt to sort and remove caps.