(2♠) - dbl - (pass) - 2NT - (pass) - 3♣ - (pass) -

3♣ shows not enoughh strength to bid game, unless partner holds 8+ HC

pass =    TP

3♦    =    5+ card ♦, weak

3♥    =    4+ card ♥, 8- HCP

3♠    =    4 card ♥, ST

3NT  =    ST, 3- card ♥