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

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

*GRAMMAR*
zup -> RED 
 lug -> BLUE 
 gazzer -> YELLOW 
 fep -> GREEN 
 u1 dax -> [u1] [u1] 
 x1 tufa -> [x1] [x1] 
 x1 wif x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 