Example sentences of "of [noun] [vb past] a [adj] role " in BNC.

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1 Brandt 's emphasis on the annual variation of light and nutrients was modified by Alexander Nathansohn ( 1878–1940 ) , who pointed out that the vertical circulation of water played a vital role in bringing nutrients to the surface .
2 The idea of democracy played a critical role in Dewey 's philosophy .
3 With the collapse of communism in eastern Europe the Council of Europe found a new role during 1990/91 in assisting in the establishment of democratic and legally accountable political and economic systems in eastern Europe .
4 For example , Christine Horton ( 1989 ) told the conference she regretted that many aspects of policing had a symbolic role which were not conducive to quantitative measures and were difficult to present with absolute objectivity .
5 Hincmar of Rheims played a crucial role ; but alongside him were colleagues with similar training , shared traditions and experience .
6 ‘ The ability to derive quantative data from the core within hours of coring played a significant role in selection of drill stem test intervals and enabled Statoil to maximise the effectiveness of expensive and time-consuming critical processes .
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