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

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

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