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

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

*GRAMMAR*
tufa -> YELLOW 
 fep -> BLUE 
 wif -> PURPLE 
 blicket -> RED 
 u1 dax -> [u1] [u1] 
 u1 gazzer u2 -> [u2] [u1] [u1] [u2] 
 x1 lug x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 