The structure for Cappelletti is as follows:
is a relay to 2
(when no interference) to show a one suited hand
is 5-5 in the majors
is hearts and an unspecified minor
is spades and an unspecified minor Note that with 2
and 2
, with no intervening bid, if partner cannot tolerate the major suit, he bids 2NT asking which minor do you have.