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

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

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