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

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

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