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

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

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