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

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

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