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

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

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