Can any one explain the below code in simple terms both buuy and sell
buy
ADX(14) > 20 AND
DIP(14) > 20 AND RSI(CLOSE, 14) > 40 AND
REF(MACDSignal(13, 26, 9, SIMPLE), 1) < REF(MACD(13, 26, 9, SIMPLE), 1)
AND MACDSignal(13, 26, 9, SIMPLE) < MACD(13, 26, 9, SIMPLE)
sell
TREND(CLOSE,5) = UP AND
REF(OPEN,1)>REF(CLOSE,1) AND
REF(OPEN,2)>REF(CLOSE,2)