⎛if ⎛> (+ a b)⎞ ⎛case x ⎞ ⎛cond ⎞⎞ ⎜ ⎝ (- c d)⎠ ⎜ (1 'foo)⎟ ⎜ ((> y 2) 'quux) ⎟⎟ ⎜ ⎜ (2 'bar)⎟ ⎝ (t 'error)⎠⎟ ⎝ ⎝ (3 'baz)⎠ ⎠