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

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

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