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

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

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