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

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

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