>> pp Jbojme::ParseTree.new("coi rodo")
[[#<Jbojme::Cmavo:0xb763c290
   @cmavo="coi",
   @selmaho="COI",
   @skicu="vocative: greetings/hello",
   @smuni="greetings">],
 [#<Jbojme::Cmavo:0xb7631d54
   @cmavo="ro",
   @selmaho="PA4",
   @skicu="digit/number: each, all",
   @smuni="each">,
  #<Jbojme::Cmavo:0xb7631d40
   @cmavo="do",
   @selmaho="KOhA3",
   @skicu="pro-sumti: you listener(s); identified by vocative",
   @smuni="you">]]