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

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

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