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

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

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