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

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

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