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

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

*GRAMMAR*
lug -> PURPLE 
 gazzer -> PINK 
 dax -> GREEN 
 wif -> BLUE 
 x1 tufa x2 -> [x1] [x2] 
 u1 fep u2 -> [u2] [u1] [u2] 
 x1 kiki x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 