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

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

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