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

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

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