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

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

*GRAMMAR*
fep -> YELLOW 
 gazzer -> GREEN 
 zup -> RED 
 lug -> BLUE 
 x1 dax x2 -> [x1] [x1] [x1] [x1] [x1] [x2] [x1] 
 u1 wif u2 -> [u2] [u1] 
 x1 tufa x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 