Drawing input wires which are function types as empty holes

[BenjaminRodatz]

e.g. in "Alice quickly and rapidly loves Bob"

[JosephNathaniel]

This arises when we have 'frames of frames', i.e. 3rd order circuit components

In the sentence above,

Alice, Bob : 0th order (states)
loves : 1st order (gates)
quickly, rapidly : 2nd order (frames)
and : 3rd order (frames of frames)