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

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

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