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

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

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