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

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

*GRAMMAR*
dax -> GREEN 
 tufa -> RED 
 gazzer -> BLUE 
 kiki -> YELLOW 
 u1 blicket -> [u1] [u1] [u1] [u1] 
 u1 wif -> [u1] [u1] [u1] [u1] 
 x1 zup x2 -> [x2] [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 