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

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

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