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

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

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