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

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

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