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

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

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