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

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

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