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

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

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