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

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

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