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

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

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