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

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

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