I want remove repeated records and remove those lines in awk

I want check repeated records in column 2 and remove those lines in awk

create a
delete a
create b
create c
delete c
create d
delete f
create f
create g
create h

Expected Output

create b
create d
create g
create h

tried on awk using this command but getting other way, but not exact result note: AWK is not mandatory ``` awk -F" " '{ if( (++count[$2]==2) ) print }'