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

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

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