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

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

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