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

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

*GRAMMAR*
fep -> BLUE 
 lug -> YELLOW 
 wif -> RED 
 zup -> PINK 
 x1 tufa x2 -> [x2] [x1] 
 x1 kiki u1 -> [u1] [x1] 
 x1 blicket -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 