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

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

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