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

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

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