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

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

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