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

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

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