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

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

*GRAMMAR*
tufa -> PURPLE 
 fep -> BLUE 
 dax -> GREEN 
 kiki -> RED 
 x1 zup x2 -> [x2] [x1] [x1] 
 x1 wif -> [x1] [x1] [x1] 
 u1 gazzer u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 