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

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

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