{0=⍴⍴⍺:'hello' ⋄ ∇¨⍵}

----------------------------------------------------

[
	["dfn", "{"],
	["number", "0"],
	["function", "="],
	["function", "⍴"],
	["function", "⍴"],
	["dfn", "⍺"],
	["dfn", ":"],
	["string", "'hello'"],
	["punctuation", "⋄"],
	["dfn", "∇"],
	["monadic-operator", "¨"],
	["dfn", "⍵"],
	["dfn", "}"]
]

----------------------------------------------------

Checks for Dfns.