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

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

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