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

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

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