hl> ex. He said "where are you headed?"
This message is really just a silly nit, not a real contribution. The
real contribution, repeated by others was to use real corpora to test
your sentence segmenter.
You can consider the sentence boundary to be signalled by the ? in
this example. It is good to keep the " as part of the sentence, but
the strongest signal is the question mark. The special handling of
the " is easiest where you are considering which punctuation to treat
as transparent.
The moral is that even the most trivial language processing is subject
to error and complexity. What *were* they thinking of when they
designed language!?