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

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

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