See my latest, in section 4.2, for a first cut on "episodes". I took a first stab at formalizing all phases of translation and execution, and documented what was known about the episodes I knew about, especially those corresponding to keywords that introduce an "episodic block" (as a generalization of "BEGIN block", etc. That also makes the term "non-episodic block" for a normal statement a perfect legaleeze example)
Just this section: http://www.dlugosz.com/files/2.pdf and the full files (specdoc.pdf and .odt) have also been updated. --John