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

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

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