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

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

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