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

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

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