(  new$hash:?myhash
& (myhash..insert)$(title."Some title")
& (myhash..insert)$(formula.a+b+x^7)
& (myhash..insert)$(fruit.apples oranges kiwis)
& (myhash..insert)$(meat.)
& (myhash..insert)$(fruit.melons bananas)
& (myhash..remove)$formula
& (myhash..insert)$(formula.x^2+y^2)
&   (myhash..forall)
  $ (
    =   key value
      .     whl
          ' ( !arg:(?key.?value) ?arg
            & put$("key:" !key "\nvalue:" !value \n)
            )
        & put$\n
    )
);