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

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

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