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

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

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