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

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

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