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

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

*GRAMMAR*
wif -> YELLOW 
 dax -> GREEN 
 fep -> PINK 
 zup -> BLUE 
 x1 kiki x2 -> [x1] [x2] 
 x1 tufa -> [x1] [x1] 
 u1 lug u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 