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

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

*GRAMMAR*
kiki -> BLUE 
 gazzer -> YELLOW 
 fep -> RED 
 tufa -> GREEN 
 x1 zup x2 -> [x1] [x2] 
 x1 wif u1 -> [u1] [x1] 
 u1 lug u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 