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

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

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