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

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

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