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

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

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