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

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

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