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

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

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