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

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

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