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

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

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