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

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

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