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

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

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