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

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

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