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

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

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