OK, but this is a simple book made very complicated by the original author.

Most of the problems PG is having are very simple books that are still not being implemented correctly by PG.

My suggestion is that we try to get the simple problems solved, not try to come up with an uber-grandiose “solve everything in the world” semantic markup language.

I would hope sensible people would look at this particular book and sensibly conclude: “Not worth the effort.”