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

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

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