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

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

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