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

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

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