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

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

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