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

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

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