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

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

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