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

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

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