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

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

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