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

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

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