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

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

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