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

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

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