First session up to slide 46 was too short for 1.5 hours, and second session, slide 47 onwards, too long for 1.5 hours. Here's how to fix:

--Put more into the first session;
--change cross-validation exercise to use hold-out, as this was a big time sink in the second half.

Second session could happily use a lot more time, especially if further optional exercises are added.

Including relation extraction materials is useful for some people who are way ahead--demonstrators need to be prepared to answer questions on that material.