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

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

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