Example sentences of "[coord] [pron] is not know [Wh adv] " in BNC.

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No Sentence
1 It has no cellars in which material could have been stored for safety , and it is not known how much had been removed elsewhere .
2 Others were selected , and it is not known how , as the parish church for an area , in which the sacraments of baptism , marriage and burial were allowed .
3 At the time of the investigation , 300 cases were still in hospital and it is not known how many will later develop cirrhosis of the liver , to which veno-occlusive disease is known to be contributory factor .
4 Nevertheless the Act is based upon this distinction ; some other countries have followed the logic and applied the legislation to all forms of information systems , whether manual or electronic , but it is not known how effective such legislation is .
5 But it is not known how these skills relate to levels of proficiency or to the process of acquisition .
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