def clear():
db = CRUD()
whalist = ['weather', 'iernet', 'radiation', 'dose']
keywordlist = ["WS", "KR", "YK", "UJ", "SU", 'dose', 'iernet']
for i in range(len(whalist)):
for j in range(len(keywordlist)):
db.cleartable(wha=whalist[i], keyword=keywordlist[j])
return 'hellow Flask'
