ability and willingness to work extensively in the field , often in adverse weather conditions and at field sites inaccessible by road and a full driving license is essential .
O O O O B-SKILL I-SKILL I-SKILL I-SKILL I-SKILL O O O O O O O O O O O O O O B-QUALIFICATION I-QUALIFICATION I-QUALIFICATION I-QUALIFICATION O O O
NN CC NN TO VB RB IN DT NN , RB IN JJ NN NNS CC IN NN NNS JJ IN NN CC DT JJ NN NN VBZ JJ .