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

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

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