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

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

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