1. If an ore isn't radioactive, then it isn't pitchblende.

2. All but the rats left the sinking ship.

3. A pesticide is dangerous if it contains DDT.

4. John Grisham writes only novels about lawyers.

5. He who hesitates is lost.

6. Modern corporations are all run in the interest of their managers.

7. Unless the sun is shining, a rainbow cannot occur.

8. Whoever suffers allergic reactions has a weakened immune system.

9. All fruits except pineapples ripen after they are picked.

10. Few corporate raiders are known for their integrity.

11. Monkeys are found in the jungles of Guatemala.

12. Monkeys are mammals.

13. I like strawberries.

14. All passengers are not allowed to smoke on board the aircraft.

15. All flowers are not fragrant.

Translate the following into standard-form categorical propositions.