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

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

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