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

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

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