id	keyword
easat-8771	aggregation
easat-8771	exchange
easat-8771	test
easat-8771	usd
easat-8771	rate
easat-8771	nonlinearity
easat-8771	data
easat-8771	frequency
easat-8771	vol
easat-8771	exchange rate
easat-8771	volatility
easat-8771	time
easat-8771	levels