What are the odds of this....1500$ pot - BEAT

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PokerStars 30/60 Hold'em (4 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is UTG with A[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">Hero raises</font>, <font color="#CC3333">Button 3-bets</font>, <font color="#666666">1 fold</font>, BB calls, <font color="#CC3333">Hero caps</font>, Button calls, BB calls.

Flop: (12.50 SB) 2[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">Button raises</font>, BB calls, <font color="#CC3333">Hero 3-bets</font>, Button calls, BB calls.

Turn: (10.75 BB) 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, <font color="#CC3333">Hero bets</font>, Button folds, <font color="#CC3333">BB raises</font>, <font color="#CC3333">Hero 3-bets</font>, BB calls.

River: (16.75 BB) 5[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets</font>, <font color="#CC3333">Hero raises</font>, <font color="#CC3333">BB 3-bets</font>, <font color="#CC3333">Hero caps</font>, BB calls.

Final Pot: 24.75 BB

Results in white below: <font color="#FFFFFF">
BB has 4h 3h (straight flush, five high).
Hero has Ad As (full house, aces full of fours).
Outcome: BB wins 24.75 BB. </font>