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

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

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