create alias beach_background (692) -> beach (72311)
create alias cave_background (188) -> cave (13961)
create alias jungle_background (234) -> jungle (4623)
create alias sky_background (644) -> sky (143731)
create alias desert_background (120) -> desert (7178)
create alias field_background (167) -> field (3604)
remove implication forest_background (10852) -> forest (66210)
remove implication forest_background (10852) -> nature_background (14688)
remove implication nature_background (14688) -> nature (29618)
remove alias forest_bg (0) -> forest_background (10852)
remove alias nature_bg (0) -> nature_background (14688)
remove alias natural_bg (0) -> nature_background (14688)
remove alias natural_background (0) -> nature_background (14688)