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

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

*GRAMMAR*
fep -> PURPLE 
 tufa -> BLUE 
 lug -> RED 
 dax -> YELLOW 
 x1 zup x2 -> [x2] [x1] 
 x1 wif -> [x1] [x1] 
 x1 blicket u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 