AND NOT (&?)

GENDER (2) AND NOT INCOME (6)

4/10 (2) AND NOT 4/20 (6)

You can use the ? (question mark) to represent NOT and the & (ampersand) to represent AND. For example, you could write the previous statement as:

GENDER (2) & ? INCOME (6)

4/10 (2) & ? 4/20 (6)