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

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

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