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

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

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