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

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

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