My cbet should be bigger, but then the SB raises, so I assume he has a set because he stays agressive.. Is it correct to put him on a set?
PartyGaming - $0.02 NL - Holdem - 9 players
Hero (BTN): 149 BB
SB: 149.5 BB (VPIP: 18.26, PFR: 13.02, 3Bet Preflop: 3.19, Hands: 673)
SB posts SB 0.5 BB, BB posts BB 1 BB
Pre Flop: (pot: 1.5 BB) Hero has A

Q
UTG calls 1 BB,
fold,
fold,
fold,
fold,
fold,
Hero raises to 4 BB, SB calls 3.5 BB,
fold,
fold
Flop: (10 BB, 2 players) 4

5

Q
SB checks,
Hero bets 4.5 BB,
SB raises to 10.5 BB,
Hero calls 6 BB
Turn: (31 BB, 2 players) 2
SB bets 11 BB,
Hero calls 11 BB
River: (53 BB, 2 players) K
SB bets 26 BB, Hero?