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

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

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