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

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

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