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

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

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