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

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

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