*SUPPORT*
IN: dax wif gazzer OUT: PINK BLUE
IN: zup zup wif gazzer OUT: RED PINK RED
IN: kiki wif gazzer OUT: PINK PURPLE
IN: zup wif dax fep OUT: BLUE RED BLUE RED BLUE RED BLUE RED
IN: zup fep OUT: RED RED RED RED
IN: dax wif kiki OUT: PURPLE BLUE
IN: zup dax wif dax OUT: RED BLUE BLUE
IN: zup wif gazzer fep OUT: PINK RED PINK RED PINK RED PINK RED
IN: zup gazzer OUT: RED PINK
IN: kiki OUT: PURPLE
IN: dax wif dax OUT: BLUE BLUE
IN: dax fep tufa zup OUT: BLUE BLUE BLUE BLUE RED RED RED
IN: dax wif zup OUT: RED BLUE
IN: dax OUT: BLUE

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

*GRAMMAR*
gazzer -> PINK 
 zup -> RED 
 kiki -> PURPLE 
 dax -> BLUE 
 x1 tufa x2 -> [x1] [x2] [x2] [x2] 
 u1 wif u2 -> [u2] [u1] 
 x1 fep -> [x1] [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 