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

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

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