A doubt about Fold to 3-bet (ip) and (oop). Who is in these position?

[tese]

Hello guys, I have a doubt about the following statistics:

Fold to 3-bet (ip) How often a player folds to a 3-Bet In Position
Fold to 3-bet (op) How often a player folds to a 3-Bet Out of Position

Who is IP or OOP?
The original raiser or the 3bettor?

[holdemstats]

The original raiser.

[Salinger]

''Fold to 3-bet (ip)'' stat. = How often a player folds when he faces a 3-bet and has position. e.g. opens on the Button and folds to a 3-bet from the BB.