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

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

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