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

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

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