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

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

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