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

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

*GRAMMAR*
dax -> BLUE 
 wif -> RED 
 tufa -> PURPLE 
 blicket -> YELLOW 
 u1 fep u2 -> [u1] [u2] [u1] [u1] 
 x1 kiki x2 -> [x2] [x1] 
 x1 lug -> [x1] [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 