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

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

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