1.   It has been shown to sold-out houses from New York to St. Petersburg, and, rarer still for a documentary, has been very profitable.

2.   It is rare enough for scientists of such different persuasions to come together, rarer still that the result is hailed as an important development.

3.   Less frequent are on-the-air calls from men seeking men, and rarer still are calls from women looking for women.

4.   Rarely does Clinton meet with ambassadorial nominees, and rarer still with nominees who are as embattled as the Republican Weld.

5.   Rarer still when they find challenging roles that can provoke discourse, impact behavior and perhaps change laws.

6.   Rarer still, in political advertising.

7.   Rarer still were stock options used for incentive pay for paralegals, but that is changing swiftly, Pritchett says.

8.   While telephones are still a rarity here and cars rarer still, most people now either have a television set themselves or a friend or relative who does.

9.   It was a rare move by a council member but rarer still for an Arab country to walk away from the Palestinian issue.