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

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

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