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

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

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