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

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

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