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

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

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