kyofu_ebooks ORDER=1

When ORDER=1:

adumont@denia:~/heroku_apps/kyofu_ebooks$ python ebooks.py
2382 tweets found in adumont
2382 total tweets found
Traceback (most recent call last):
  File "ebooks.py", line 249, in <module>
    main(sys.argv[1:])
  File "ebooks.py", line 242, in main
    ebook_tweet = try_build_tweet(source_tweets, order)
  File "ebooks.py", line 120, in try_build_tweet
    ebook_tweet = mine.generate_sentence()
  File "/home/adumont/heroku_apps/kyofu_ebooks/markov3.py", line 41, in generate_sentence
    if seed_words[0][0].isupper():
IndexError: list index out of range