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

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

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