Way to distinguish OLL31, OLL32, OLL43, and OLL44

In upright P shape position, a bar is at the right side of P shape -> OLL44

In upright P shape position, a bar is at the left side of P shape -> OLL43

In upright P shape position, a block is at the right side on F-face -> OLL32

In upright P shape position, a block is at the left side on F-face -> OLL31