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

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

*GRAMMAR*
zup -> PINK 
 lug -> BLUE 
 gazzer -> PURPLE 
 fep -> RED 
 x1 blicket u1 -> [x1] [u1] 
 u1 tufa -> [u1] [u1] 
 u1 wif u2 -> [u2] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 