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

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

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