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

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

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