*SUPPORT*
IN: gazzer gazzer fep wif OUT: PURPLE RED RED PURPLE
IN: kiki tufa OUT: BLUE BLUE
IN: gazzer tufa OUT: PURPLE PURPLE
IN: kiki lug tufa OUT: BLUE PINK PINK
IN: wif OUT: RED
IN: kiki tufa dax OUT: BLUE BLUE BLUE BLUE
IN: lug wif kiki tufa OUT: PINK RED BLUE BLUE
IN: lug fep lug OUT: PINK PINK PINK
IN: wif dax OUT: RED RED
IN: gazzer OUT: PURPLE
IN: gazzer dax OUT: PURPLE PURPLE
IN: lug lug tufa OUT: PINK PINK PINK
IN: lug fep wif OUT: RED RED PINK
IN: kiki fep wif OUT: RED RED BLUE

*QUERY*
IN: kiki fep kiki OUT: BLUE BLUE BLUE
IN: wif fep wif OUT: RED RED RED
IN: wif fep lug OUT: PINK PINK RED
IN: lug kiki tufa OUT: PINK BLUE BLUE
IN: lug tufa OUT: PINK PINK
IN: kiki kiki fep gazzer OUT: BLUE PURPLE PURPLE BLUE
IN: lug wif tufa dax OUT: PINK RED RED PINK RED RED
IN: wif tufa OUT: RED RED
IN: gazzer fep lug OUT: PINK PINK PURPLE
IN: gazzer fep kiki OUT: BLUE BLUE PURPLE

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