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

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

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