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

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

*GRAMMAR*
lug -> GREEN 
 tufa -> YELLOW 
 kiki -> RED 
 zup -> BLUE 
 x1 gazzer -> [x1] [x1] 
 u1 fep x1 -> [u1] [x1] 
 u1 wif u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 