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

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

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