1♦ - 1♥ - 1NT - 2♣ -

2♦    =    5+♦4+♣, invitational, 14-16

2♥    =    1354 or 0364, invitational, 14-16

2♠    =    artificial GF

2NT =    invitation with ♠ ST

3♣    =    invitational, 5+♦5♣ 

3♥    =    1354 or 0364, GF, 17+

3♠    =    asking about ♠ ST

3NT    =    TP, with ♠ ST

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