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

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

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