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

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

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