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

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

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