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

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

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