*SUPPORT*
IN: tufa tufa kiki wif tufa wif zup OUT: YELLOW BLUE BLUE BLUE BLUE BLUE
IN: fep kiki OUT: GREEN GREEN
IN: fep dax zup dax lug OUT: GREEN YELLOW YELLOW PURPLE PURPLE
IN: lug kiki wif zup fep OUT: YELLOW GREEN PURPLE PURPLE
IN: tufa tufa OUT: BLUE BLUE
IN: fep lug kiki OUT: GREEN PURPLE GREEN PURPLE
IN: fep OUT: GREEN
IN: lug lug dax zup dax zup wif tufa OUT: BLUE PURPLE PURPLE YELLOW YELLOW YELLOW YELLOW
IN: zup lug fep kiki OUT: YELLOW PURPLE GREEN YELLOW PURPLE GREEN
IN: lug OUT: PURPLE
IN: lug zup OUT: PURPLE YELLOW
IN: tufa OUT: BLUE
IN: zup OUT: YELLOW
IN: tufa fep kiki OUT: BLUE GREEN BLUE GREEN

*QUERY*
IN: lug tufa dax lug dax fep OUT: PURPLE BLUE PURPLE PURPLE GREEN GREEN
IN: lug dax lug OUT: PURPLE PURPLE PURPLE
IN: lug tufa OUT: PURPLE BLUE
IN: lug tufa tufa kiki dax fep OUT: PURPLE BLUE BLUE PURPLE BLUE BLUE GREEN GREEN
IN: tufa dax fep OUT: BLUE GREEN GREEN
IN: lug lug kiki kiki OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: zup kiki OUT: YELLOW YELLOW
IN: zup zup wif zup lug kiki dax tufa OUT: YELLOW PURPLE YELLOW PURPLE BLUE BLUE YELLOW YELLOW
IN: zup kiki wif lug kiki OUT: PURPLE YELLOW YELLOW PURPLE YELLOW YELLOW
IN: lug fep OUT: PURPLE GREEN

*GRAMMAR*
tufa -> BLUE 
 lug -> PURPLE 
 fep -> GREEN 
 zup -> YELLOW 
 x1 kiki -> [x1] [x1] 
 x1 wif x2 -> [x2] [x1] 
 x1 dax u1 -> [x1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 