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

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

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