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

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

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