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

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

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