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

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

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