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

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

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