Instruct: Classify a review into positive or negative sentiment.
Query: A collection of papers on workflow.

Some good, most useless. One must dig deep to get any valuable nuggets from this one. The second half of the book is the WfMC interface specifications which doesn't appear to be any different than the specifications that can be accessed on-line, though the on-line specifications are newer and a little more up-to-date (which causes one to wonder why 1997 is in the title though there hasn't been an update to the specifications since 10/96 and the book doesn't reflect the later changes....)