anchor.diff:  
   *)
   
  -let data = """
  +let shipsObj = ParaValue.Parse """
     ship={
       name=bessie
       strength=22
  
positive.code: 
  (**
  
  If the data is in a difficult or hard to read format (eg. thousands of items
  on a single line), call the ToString method, which will print a prettified
  version of the data
  
  *)
  
  let mini = "names={Fred Jones Barb Barbara George Harry Hermoine Golem Sam}"
  (ParaValue.Parse mini).ToString()
  
  // {
  //   names: [
  //     Fred,
  //     Jones,
  //     Barb,
  //     ...
  //   ]
  // }
  
  (**
  
  
negative.code:   return name, strength
  }
  
  // Collect all the values with a key "ship" into a ParaValue.Array
  let (pips : ParaValue) = ParaValue.collect "ship" shipsObj
  
  // Execute `parseShip` on each ship and aggregate the result
  // into an array
  