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

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

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