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

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

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