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

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

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