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

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

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