What kind of example is that?
in https://en.wikibooks.org/wiki/Scheme_Programming/Macros
(match some-value (literally-hitler)
((literally-hitler . rest) ; First element is literally Hitler.
(error "Found the Nazi"))
(((a b) second . rest) ; First element is a two-element list.
(display a))
((first second . rest) ; It's a list with at least two elements.
(display (list first second)))
(else #f))