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

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

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