*SUPPORT*
IN: zup wif OUT: BLUE BLUE BLUE
IN: kiki fep kiki OUT: YELLOW YELLOW
IN: lug lug lug fep lug OUT: GREEN GREEN GREEN GREEN
IN: kiki gazzer OUT: YELLOW YELLOW
IN: lug zup fep kiki OUT: GREEN YELLOW BLUE
IN: tufa fep zup wif OUT: BLUE RED BLUE RED BLUE RED
IN: kiki lug OUT: YELLOW GREEN
IN: kiki OUT: YELLOW
IN: lug fep kiki OUT: YELLOW GREEN
IN: tufa gazzer OUT: RED RED
IN: lug fep kiki wif OUT: YELLOW GREEN YELLOW GREEN YELLOW GREEN
IN: tufa gazzer wif OUT: RED RED RED RED RED RED
IN: zup gazzer OUT: BLUE BLUE
IN: zup OUT: BLUE

*QUERY*
IN: lug gazzer OUT: GREEN GREEN
IN: zup fep lug wif OUT: GREEN BLUE GREEN BLUE GREEN BLUE
IN: zup kiki OUT: BLUE YELLOW
IN: tufa wif OUT: RED RED RED
IN: tufa OUT: RED
IN: zup kiki gazzer OUT: BLUE YELLOW YELLOW
IN: zup fep tufa OUT: RED BLUE
IN: tufa fep lug OUT: GREEN RED
IN: lug OUT: GREEN
IN: kiki gazzer wif OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW

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