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

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

*GRAMMAR*
wif -> PINK 
 kiki -> BLUE 
 gazzer -> YELLOW 
 zup -> RED 
 x1 tufa x2 -> [x1] [x1] [x2] 
 u1 dax -> [u1] [u1] 
 x1 lug x2 -> [x1] [x2] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 