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

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

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