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

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

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