3♣ - Preemptive clubs with 6-8 clubs, partner should pass without values or sacrifice with distribution
3♦ - Preemptive diamonds with 6-8 diamonds, partner should pass without values or sacrifice with distribution
3♥ - Preemptive hearts with 7 hearts, partner should pass without values or sacrifice with distribution
3♠ - Preemptive spades with 7 spades, partner should pass without values or sacrifice with distribution
4♥ - Strong ♥ suit with minimal outside values, 1.5 quick tricks outside hearts max
4♠ - Strong ♠ suit with minimal outside values, 1.5 quick tricks outside spades max