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

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

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