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

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

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