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

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

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