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

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

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