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

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

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