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

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

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