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

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

*GRAMMAR*
tufa -> BLUE 
 dax -> YELLOW 
 kiki -> PINK 
 wif -> GREEN 
 u1 zup u2 -> [u1] [u2] 
 x1 lug -> [x1] [x1] [x1] 
 u1 fep x1 -> [u1] [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 