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

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

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