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

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

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