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

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

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