*SUPPORT*
IN: tufa tufa kiki dax kiki OUT: BLUE BLUE GREEN GREEN GREEN
IN: fep dax fep OUT: RED RED RED
IN: fep OUT: RED
IN: tufa dax fep OUT: BLUE RED BLUE
IN: kiki gazzer fep OUT: GREEN GREEN RED GREEN
IN: lug gazzer tufa OUT: PURPLE PURPLE BLUE PURPLE
IN: fep gazzer tufa OUT: RED RED BLUE RED
IN: lug gazzer fep zup OUT: PURPLE PURPLE RED PURPLE PURPLE PURPLE RED PURPLE
IN: lug OUT: PURPLE
IN: fep zup OUT: RED RED
IN: kiki OUT: GREEN
IN: tufa dax tufa OUT: BLUE BLUE BLUE
IN: lug gazzer kiki OUT: PURPLE PURPLE GREEN PURPLE
IN: kiki dax lug zup OUT: GREEN PURPLE GREEN GREEN PURPLE GREEN

*QUERY*
IN: lug tufa dax lug OUT: PURPLE BLUE PURPLE BLUE
IN: tufa gazzer kiki OUT: BLUE BLUE GREEN BLUE
IN: fep dax lug zup OUT: RED PURPLE RED RED PURPLE RED
IN: fep dax lug OUT: RED PURPLE RED
IN: lug dax lug OUT: PURPLE PURPLE PURPLE
IN: lug kiki gazzer lug OUT: PURPLE GREEN GREEN PURPLE GREEN
IN: lug dax tufa OUT: PURPLE BLUE PURPLE
IN: tufa dax lug OUT: BLUE PURPLE BLUE
IN: kiki fep dax kiki OUT: GREEN RED GREEN RED
IN: kiki dax tufa zup OUT: GREEN BLUE GREEN GREEN BLUE GREEN

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