11.   Some experts here say that this may have been a prime motivation behind the attack on Parliament.

12.   They said their prime motivation was protecting the health of bartenders and servers exposed to smoke for hours.

13.   Griffin said the economic slowdown and a related weakening of business travel were not the prime motivation for the new pricing category.

14.   He said the prime motivation for change is the problem of high unemployment among some immigrants, who have few job skills and little English.

15.   Hill said financial considerations were not his prime motivation for considering a change.