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

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

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