*SUPPORT*
IN: gazzer gazzer blicket tufa OUT: RED RED PURPLE PURPLE
IN: dax blicket tufa lug gazzer lug blicket tufa OUT: PURPLE PURPLE RED BLUE PURPLE PURPLE
IN: gazzer tufa lug dax tufa OUT: BLUE BLUE RED RED
IN: kiki dax OUT: GREEN BLUE
IN: dax tufa fep OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: kiki OUT: GREEN
IN: kiki tufa OUT: GREEN GREEN
IN: gazzer gazzer OUT: RED RED
IN: dax tufa OUT: BLUE BLUE
IN: gazzer OUT: RED
IN: gazzer tufa OUT: RED RED
IN: dax fep OUT: BLUE BLUE BLUE
IN: gazzer dax tufa lug dax OUT: BLUE RED BLUE BLUE
IN: blicket tufa OUT: PURPLE PURPLE

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

*GRAMMAR*
gazzer -> RED 
 kiki -> GREEN 
 blicket -> PURPLE 
 dax -> BLUE 
 u1 tufa -> [u1] [u1] 
 x1 fep -> [x1] [x1] [x1] 
 x1 lug x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 