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

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

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