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

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

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