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

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

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