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

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

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