Demo breaks when I use custom test data

[maoredman]

Hi, first of all, thanks for sharing your great work! I really love the web demo.

When I try and use my own .txt files for the web demo though, it doesn't seem to work, even if I abide by babI's formatting rules.

Below is my error stack:

[2017-11-19 17:50:59,797] ERROR in app: Exception on /get/story [GET]
Traceback (most recent call last):
File "/usr/local/lib/python2.7/site-packages/flask/app.py", line 1982, in wsgi_app
response = self.full_dispatch_request()
File "/usr/local/lib/python2.7/site-packages/flask/app.py", line 1614, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/usr/local/lib/python2.7/site-packages/flask/app.py", line 1517, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/usr/local/lib/python2.7/site-packages/flask/app.py", line 1612, in full_dispatch_request
rv = self.dispatch_request()
File "/usr/local/lib/python2.7/site-packages/flask/app.py", line 1598, in dispatch_request
return self.view_functionsrule.endpoint
File "demo/web/webapp.py", line 47, in get_story
question_idx, story_idx, last_sentence_idx)
File "demo/qa.py", line 91, in get_story_texts
for sent_idx in range(last_sentence_idx + 1)]
KeyError: 175