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

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

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