1.  Age, sex and Marital status all affect earnings and income.

2.  Apparently the girl was the victim of a vicious sex attack.

3.  Are the twins the same sex?

4.  As an artist, he was obsessed with sex and death.

5.  Berne has published a review of studies on sex education programs in public schools.

6.  Both sexes have a small black spot in the midline at the base of the tail stalk.

7.  Both sexes show white wing patches in flight, looking rather like small Goldeneye.

8.  By indulging in casual sex, many teenagers could be signing their own death warrants.

9.  Details of the sex scandal are being revealed just to titillate the public, not inform them.

10.  Differences between the sexes were very noticeable.