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

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

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