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

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

*GRAMMAR*
dax -> YELLOW 
 blicket -> BLUE 
 zup -> RED 
 fep -> GREEN 
 u1 wif u2 -> [u2] [u1] [u1] 
 u1 tufa -> [u1] [u1] 
 x1 gazzer x2 -> [x2] [x1] [x2] [x2] 
 u1 x1 -> [u1] [x1] 
 