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

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

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