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

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

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