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

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

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