Warning from statistic library!
  Warning code: 204
  Warning message: Total bigram count cannot be less than to zero
Skipping ngram one<>two<>5 13 7
Warning from statistic library!
  Warning code: 204
  Warning message: Total bigram count cannot be less than to zero
Skipping ngram one<>three<>5 13 5
Warning from statistic library!
  Warning code: 204
  Warning message: Total bigram count cannot be less than to zero
Skipping ngram one<>four<>3 13 5
Warning from statistic library!
  Warning code: 204
  Warning message: Total bigram count cannot be less than to zero
Skipping ngram two<>two<>2 3 7
Warning from statistic library!
  Warning code: 204
  Warning message: Total bigram count cannot be less than to zero
Skipping ngram two<>four<>1 3 5
Warning from statistic library!
  Warning code: 204
  Warning message: Total bigram count cannot be less than to zero
Skipping ngram three<>four<>1 1 5
test-1.sub-3.cnt does not look like a ngram frequency file. The total ngrams should be greater than the sum of counts of all the ngrams.