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

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

*GRAMMAR*
lug -> BLUE 
 zup -> GREEN 
 wif -> RED 
 kiki -> PURPLE 
 u1 tufa u2 -> [u1] [u2] [u1] 
 u1 fep -> [u1] [u1] 
 x1 dax u1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 