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

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

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