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

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

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