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

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

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