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

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

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