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

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

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