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

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

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