Weak 2 in S
can be 5 cards
typically 6 and 6-9 when red
anything when green
tends to deny 4c H (else open 2H).

..2NT: Puppet to 3C (C Weak or GF, or S GF)
..3C:Puppet to 3D (D Weak or Strong, or S INV S)
..3D: Puppet to 3H (H Weak or Strong, or S INV S+H)
..3H: S GF (Suit Qual ASK)
..3S: PRE
..4C #
..4H To play
..4S To play

..3C - must bid
……Then
……Pass: C
……3D C+D GF
……3H C+H GF
……3S = Spades (not Clubs), GF, Asks shortage (4S Min no short, 3NT Max no short)
……3NT C GF
……4C C GF

..3D must bid
……Then
……Pass: D
……3H: D+H GF
.…..3S: INV in S (nothing about D)
……3NT: D GF
……4D D GF

==== 2S: .. 3D transfer to 3H (always shows H) ==== ..3H - Not great hand for H ……Then ……Pass: H ……3S: S INV, with H. ……3NT: H GF ……4C: C+H ……4D: D+H ……4H: H GF .. Other - Good hand for H

..3S: 5S Bad suit (then 3NT to play)
..3NT: 5S Good suit
..4C, 4D, 4H, 4S : 6 card suit, best to worst

S - Weak: Raise S
S - INV: Tfr to D then 3S
S - GF: 2NT→C then 3S, asks shortage (or 3H suit Qual ask)

C Weak or GF, 2NT then pass or bid
D Weak or GF, 3C then pass or bid
H Weak or GF, 3D then pass or bid