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

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

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