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

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

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