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

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

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