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

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

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