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

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

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