- Use `=jis-x0208@{1983|1990}' instead of

- Use `=jis-x0208@{1983|1990}' instead of
  `=jis-x0208-{1983|1990}'.
- Separate CJK characters from UCS characters.
(<fullwidth LOGICAL AND>): Unify JC3-7FD8.
(<N-ARY LOGICAL AND>): Separate JC3-7FD8.
(<fullwidth LOGICAL OR>): Unify JC3-7FD9.
(<N-ARY LOGICAL OR>): Separate JC3-7FD9.
(<fullwidth INTERSECTION>): Unify JC3-7FD7.
(<N-ARY INTERSECTION>): Separate JC3-7FD7.
(<fullwidth UNION>): Unify JC3-7FD6.
(<N-ARY UNION>): Separate JC3-7FD6.