*SUPPORT*
IN: wif wif gazzer tufa OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: dax wif OUT: PINK BLUE
IN: lug blicket dax OUT: GREEN PINK GREEN PINK GREEN
IN: fep OUT: RED
IN: fep fep gazzer OUT: RED RED RED
IN: lug fep gazzer OUT: GREEN RED RED
IN: lug blicket lug OUT: GREEN GREEN GREEN GREEN GREEN
IN: dax gazzer OUT: PINK PINK
IN: dax gazzer tufa tufa OUT: PINK PINK PINK PINK PINK PINK PINK PINK
IN: fep gazzer tufa OUT: RED RED RED RED
IN: wif fep gazzer tufa OUT: BLUE RED RED BLUE RED RED
IN: fep blicket fep OUT: RED RED RED RED RED
IN: dax fep blicket wif OUT: PINK RED BLUE RED BLUE RED
IN: wif blicket lug OUT: BLUE GREEN BLUE GREEN BLUE

*QUERY*
IN: wif gazzer tufa OUT: BLUE BLUE BLUE BLUE
IN: lug gazzer OUT: GREEN GREEN
IN: fep gazzer tufa tufa OUT: RED RED RED RED RED RED RED RED
IN: fep gazzer OUT: RED RED
IN: lug fep tufa tufa OUT: GREEN RED GREEN RED GREEN RED GREEN RED
IN: fep wif tufa OUT: RED BLUE RED BLUE
IN: wif gazzer OUT: BLUE BLUE
IN: fep lug OUT: RED GREEN
IN: dax dax gazzer OUT: PINK PINK PINK
IN: dax OUT: PINK

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