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

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

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