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

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

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