Expository text informing you of something. Except not really, because users don't read.

M ┌───────────┐ o │ A │ n │ │ │ s │ ├────B │ t │ │ │ e │ └─┬─C │ r │ D │ s └───────────┘

Some text at the bottom showing that it's a pretty general technique.