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

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

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