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

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

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