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

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

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