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

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

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