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

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

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