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

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

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