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

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

*GRAMMAR*
lug -> YELLOW 
 dax -> RED 
 fep -> PURPLE 
 tufa -> BLUE 
 x1 wif u1 -> [x1] [u1] [x1] 
 x1 gazzer x2 -> [x2] [x1] [x2] [x2] [x1] 
 x1 kiki x2 -> [x1] [x1] [x2] [x2] [x2] 
 u1 x1 -> [u1] [x1] 
 