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

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

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