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

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

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