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

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

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