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

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

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