1.   A rich vein of disagreement indeed, offered for eager exploitation by opponents!

2.   In voicing our fear of old age, Rivers has discovered a rich vein of comedy.

3.   The director discovered a rich vein of sentimentality.

4.   In the United States, what we now recognise as social psychology has always been a rich vein of thought.

5.   Some areas may provide a rich vein of local history which is also well related to a supplementary unit.

6.   They also enjoy a sense of humour, finding the late great Don Revies death from motor neurone disease a particularly rich vein of material.

7.   And if the evening was any indication, the Republicans are mining a rich vein of discontent.

8.   And Zeneca, with a rich vein of new products coming to market, is seen as a potential and affordable plum for one of the top drug companies.

9.   Anti-government feeling has been a rich vein in American politics, ever since the beginning.