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

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

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