id	keyword
esrj-77670	trend
esrj-77670	et al
esrj-77670	rainfall
esrj-77670	evaporation
esrj-77670	days
esrj-77670	limbang
esrj-77670	year
esrj-77670	station
esrj-77670	non
esrj-77670	climate
esrj-77670	linear
esrj-77670	analysis
esrj-77670	ukong
esrj-77670	data
esrj-77670	kendall
esrj-77670	regression
esrj-77670	characteristics
esrj-77670	slope
esrj-77670	mann
esrj-77670	change