rename phrase primitives to be more explicit: e.g. cc0 -> cc10
add take-gen3-random (e.g. "Dei suoceri ci seguiranno (Some parent-in-law will follow us)")
log/info => log/debug
add take-gen4-random [n]:

start with: cc10 => ch21 cc10

(same as take-gen3-random to start with)
attempt to use hh21 causes (for now):

ClassCastException clojure.lang.PersistentArrayMap cannot be cast to java.lang.CharSequence  clojure.core/re-matcher (core.clj:4386)
add (defn take-gen5-random [n]): working on  even longer sentences, but first have to fix "ClassCastException clojure.lang.PersistentArrayMap cannot be cast to java.lang.CharSequence  clojure.core/re-matcher (core.clj:4386)" errors
fix some edge cases in morphology found by gen14.