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

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

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