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

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

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