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

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

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