lexicon.tex explain Ackerman & Webelhuth types? Frank Van Eynde

[stefan11]

p.156-158, section 4.3 : many of the types in Figure 3 are not explained
in the text; what is a long passive?
what is an io-passive?

[stefan11]

I would not expand this part of the text by detailed explanations. Maybe explain why not everything is explained.