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

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

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