

You are a specialist in playing 6-handed No Limit Texas Holdem. The following will be a game scenario and you need to make the optimal decision.

Here is a game summary:

The small blind is 0.5 chips and the big blind is 1 chips. Everyone started with 100 chips.
The player positions involved in this game are UTG, HJ, CO, BTN, SB, BB.
In this hand, your position is BTN, and your holding is [Three of Spade and Three of Diamond].
Before the flop, BTN raise 2.5 chips, and BB call. Assume that all other players that is not mentioned folded.
The flop comes Six Of Spade, Eight Of Diamond, and Seven Of Club, then BB check, BTN bet 2 chips, BB raise 8 chips, and BTN call.
The turn comes Nine Of Spade, then BB check, BTN bet 26 chips, and BB raise 89 chips.
You currently have Three of a Kind(Three of a Kind, Threes with 9 and 8 kickers).

Now it is your turn to make a move.
To remind you, the current pot size is 136.0 chips, and your holding is [Three of Spade and Three of Diamond]. You currently have Three of a Kind.

Decide on an action based on the strength of your hand on this board, your position, and actions before you. Do not explain your answer.
Your optimal action is: