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

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

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