Answer "true" or "false" to the following statements:

1. All words have an intensional meaning and an extensional meaning.

2. The intensional meaning of a term consists of the attributes connoted by the term.

3. The extensional meaning of a term consists of the members of the class denoted by the term.

4. The extension of a term always remains the same with the passage of time.

5. Some terms have empty intension.

6. Some terms have empty extension.

7. The intension of a term determines the extension.

8. The intension of a term determines how specific the term is.

9. The order of increasing intension is always the same as that of decreasing extension.

10. "Leprechaun" and "unicorn" have the same extension.