11.   In the classical theory of comparative advantage, there is no role for government in determining the location of industry.

12.   In this context their role is not negative, even though you get a bag of nonsense with that good service.

13.   Interactionists argue that roles are often unclear, ambiguous and vague.

14.   Its main role is as a terminal sire for suckler herds or as a beef sire for dairy herds.

15.   Its role is to serve as a centripetal force against the centrifugal tendencies of the ministries.

16.   Many political systems have constituted judicial structures whose primary role is, or at least appears to be, adjudication.

17.   My role will be to join in with you, so I have asked Mark Drake to lead the meeting.

18.   Once the managers began to see that they were running a business, they realized that their role was to be generalists.

19.   Our role has been to put forward practical suggestions - and sometimes to rein in the larger ambitions of our partners.