Example sentences of "or [adj] [noun pl] ' duration " in BNC.

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1 For the few hours , the day or few days ' duration of the " event " , their labour force at the location in question increases many times in size .
2 In 1844 , after Coleman 's time , the course at the Edinburgh ‘ Dick ’ School was apparently a mere five or six months ' duration .
3 Lawyers called these leases " building leases " , which were typically of sixty or ninety years ' duration .
4 In fact , research in America has shown that many very happy and successful marriages , whether of five or thirty-five years ' duration , include very little sex .
5 The courses are of three or four years ' duration .
6 The course is of three or four years ' duration .
7 The course is of three or four years ' duration .
8 The course is of three or four years ' duration .
9 The course is of three or four years ' duration .
10 The course is of three or four years ' duration .
11 The course is of three or four years ' duration .
12 In one sense they are the British equivalent of political advertising on American television ‘ but they differ from such advertising in three very important ways : first , PFB broadcasting is free ( although the parties have to bear at least some of the production costs — indeed , all of the production costs if they wish to use private production facilities ) ; second , the number of PEB broadcasts is fixed by agreement between broadcasters and the parties to reflect ( roughly ) the current popular standing of the parties ( in 1987 Labour , the Liberal-SDP Alliance , and the Conservatives got exactly equal time for PEBs while other parties received very much less ) ; third , the broadcasters have insisted , against the politicians ’ wishes , that PEBs be short programmes typically ten minutes long , rather than high-impact adverts of perhaps twenty or thirty seconds ' duration .
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