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

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

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