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

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

*GRAMMAR*
gazzer -> PURPLE 
 tufa -> BLUE 
 dax -> GREEN 
 zup -> RED 
 x1 kiki x2 -> [x2] [x1] [x1] 
 x1 lug -> [x1] [x1] 
 x1 fep -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 