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

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

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