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

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

*GRAMMAR*
dax -> BLUE 
 wif -> YELLOW 
 tufa -> GREEN 
 lug -> PINK 
 x1 kiki x2 -> [x2] [x1] 
 x1 zup -> [x1] [x1] 
 x1 gazzer -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 