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

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

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