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

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

*GRAMMAR*
wif -> YELLOW 
 kiki -> BLUE 
 zup -> RED 
 gazzer -> PINK 
 u1 tufa u2 -> [u1] [u2] [u1] 
 x1 lug x2 -> [x2] [x2] [x1] [x2] 
 u1 fep -> [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 