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

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

*GRAMMAR*
fep -> BLUE 
 lug -> RED 
 tufa -> GREEN 
 wif -> YELLOW 
 u1 kiki u2 -> [u2] [u1] 
 x1 zup x2 -> [x1] [x2] 
 u1 gazzer -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 