*SUPPORT*
IN: fep tufa wif OUT: PINK BLUE BLUE
IN: kiki tufa fep OUT: BLUE GREEN GREEN
IN: kiki zup fep gazzer dax OUT: PURPLE BLUE PURPLE PURPLE BLUE PURPLE GREEN
IN: kiki tufa kiki gazzer fep OUT: BLUE GREEN GREEN GREEN BLUE
IN: dax dax OUT: PURPLE PURPLE
IN: dax gazzer fep gazzer dax OUT: PURPLE BLUE PURPLE BLUE PURPLE
IN: kiki gazzer wif OUT: PINK GREEN PINK
IN: dax wif OUT: PURPLE PINK
IN: wif OUT: PINK
IN: dax fep wif OUT: PURPLE BLUE PINK
IN: wif fep OUT: PINK BLUE
IN: kiki OUT: GREEN
IN: fep wif tufa fep OUT: BLUE BLUE PINK BLUE PINK
IN: dax tufa dax OUT: PURPLE PURPLE PURPLE

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

*GRAMMAR*
fep -> BLUE 
 wif -> PINK 
 kiki -> GREEN 
 dax -> PURPLE 
 x1 tufa u1 -> [u1] [x1] [x1] 
 x1 zup x2 -> [x2] [x2] [x1] 
 x1 gazzer u1 -> [u1] [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 