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

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

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