No fish are reptiles. All trout (鲑鱼)are fish. So, some trout are not reptiles.
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Some butchers (屠夫)are not bakers(烘焙师). No butchers are candlestick(烛台) makers. Therefore, some candlestick makers are not bakers.
No one who is a Nobel Prize winner is a rock star. A number of astrophysicists (天体物理学家)are Nobel Prize winners. Therefore, a number of astrophysicists are not rock stars.
At least one lawyer is not a golfer. Only persons who have attended law school are lawyers. So, at least one person who has attended law school is not a golfer.
Only social scientists are political scientists. Many political scientists are persons who favor campaign finance reform. Accordingly, many persons who favor campaign finance reform are social scientists.