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

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

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