id	keyword
esrj-85482	� �
esrj-85482	risk
esrj-85482	safety
esrj-85482	stone
esrj-85482	dimension
esrj-85482	incidents
esrj-85482	mining
esrj-85482	mines
esrj-85482	method
esrj-85482	accidents
esrj-85482	analysis
esrj-85482	inference
esrj-85482	assessment
esrj-85482	process
esrj-85482	study
esrj-85482	ahp