[[
   "start",
  ["keyword","with"],
  ["text"," "],
  ["identifier","Ada"],
  ["text","."],
  ["identifier","Text_IO"],
  ["text","; "],
  ["keyword","use"],
  ["text"," "],
  ["identifier","Ada"],
  ["text","."],
  ["identifier","Text_IO"],
  ["text",";"]
],[
   "start",
  ["keyword","procedure"],
  ["text"," "],
  ["identifier","Hello"],
  ["text"," "],
  ["keyword","is"]
],[
   "start",
  ["keyword","begin"]
],[
   "start",
  ["text","  "],
  ["identifier","Put_Line"],
  ["paren.lparen","("],
  ["string","\"Hello, world!\""],
  ["paren.rparen",")"],
  ["text",";"]
],[
   "start",
  ["keyword","end"],
  ["text"," "],
  ["identifier","Hello"],
  ["text",";"]
]]