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

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

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