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

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

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