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

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

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