I have a hard time seeing that either Sandra or Becky would side with Adam. I can see that maybe they would want to vote out Ozzy the first chance they get if he didn't get immunity. Ozzy is just too good at it and they will not get another chance.
I don't see Becky will go against Yul either. I think Becky is settled to be second. She might have hope that if both of them are in the final, she might get more vote because she didn't create as much enemies as Yul. As for Sandra, I have no clue what she would do. She hasn't been really playing the game, she is more like just following.