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

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

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