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

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

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