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

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

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