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

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

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